Luminous Landscape Forum

Equipment & Techniques => Cameras, Lenses and Shooting gear => Topic started by: CptZar on December 03, 2013, 05:15:08 am

Title: A7r first impression
Post by: CptZar on December 03, 2013, 05:15:08 am
Just came back from San Francisco. I used the A7r with some Zeiss Hartblei and Canon TS lenses.  I did not have to blend any image. The dynamic range is incredible. With the 5DIII, I always had to blend in PS. Focus Peaking works nice. However to nail focus the x14 Zoom is better. With the EVF this is easy. For tilt you focus for infinity and then just dial in a little tilt. Just like the theory says, but now it works.  Focus peaking will show you exactly how your focus plane moves. Also what happens if you you open/ close aperture. Impossible with any other FF cam.

The cam handles nice, though I disabled all the functions of the dial wheel as they alway pop up somehow. The Sony wireless remote control was used for shutter release.

I used the Metabones adapter. I didn't have any issues with it.  

The images are made with Zeiss Hartblei 40 and 80 mm and Canon 17mm. Vignetting was not an issue. The sunset with flowers had a some tilt added (Zeiss Hartblei 40mm).

Files where converted with Adobe DNG Converter 8.3 and then processed in Aperture. I guess Apple RAW  will get even better results.

The dynamic range is amazing. You push a totally dark image all the way up, and there is no color bending. It stays absolutely clean. Impossible on the 5DIII which will then always give you color artifacts.
Title: Re: A7r first impression
Post by: MrSmith on December 03, 2013, 05:20:17 am
What adapter were you using? And alignment issues?
Title: Re: A7r first impression
Post by: CptZar on December 03, 2013, 07:05:18 am
Metabones, no issues.
Title: Re: A7r first impression
Post by: mhospelt on December 03, 2013, 01:39:50 pm
WOW, that are good news. So, no issues with the Canon TS 17mm?
Title: Re: A7r first impression
Post by: Alan Klein on December 03, 2013, 01:53:17 pm
If you were buying digital now for landscapes, would you recommend this over all other FF cameras?  Do you think you can get away from grad ND filters?
Title: Re: A7r first impression
Post by: CptZar on December 03, 2013, 03:03:40 pm
WOW, that are good news. So, no issues with the Canon TS 17mm?

The Beach picture was made with the 17TS. You can see it was shifted quite some degrees. No vignetting there.
Title: Re: A7r first impression
Post by: CptZar on December 03, 2013, 03:18:25 pm
If you were buying digital now for landscapes, would you recommend this over all other FF cameras?  Do you think you can get away from grad ND filters?

Yes I would. I wanted this Camera. FF, EVF, no mirror. No Nikon D800 and I just sold my 5DMIII. But  that is me, others will think different. About ND Grads, I think no. There is still moments you might need them. But less.
Title: Re: A7r first impression
Post by: Isaac on December 03, 2013, 03:54:46 pm
Focus peaking will show you exactly how your focus plane moves.

Oh! That's such a cool toy!
Title: Re: A7r first impression
Post by: ACH DIGITAL on December 03, 2013, 04:29:15 pm
Congratulations on your acquisition. Would you mind explaining how focus peaking works with this camera? I have a D800 and now a Pana Lumix m4/3 that has focus peaking with the click of a button. Focusing with the Lumix is so easy.

ACH
Title: Re: A7r first impression: focusing
Post by: BJL on December 03, 2013, 07:52:07 pm
Focus Peaking works nice. However to nail focus the x14 Zoom is better. With the EVF this is easy. For tilt you focus for infinity and then just dial in a little tilt. Just like the theory says, but now it works.  Focus peaking will show you exactly how your focus plane moves. Also what happens if you you open/ close aperture. Impossible with any other cam.
Thanks for the report; I am glad the camera is performing well, and i am becoming more persuaded that focus peaking would be nice to have in my next camera. But I do not understand that last sentence (underlined above): aren't there a number of other cameras that offer both focus peaking and magnified live view for focusing?
Title: Re: A7r first impression: focusing
Post by: CptZar on December 04, 2013, 01:20:52 am
Thanks for the report; I am glad the camera is performing well, and i am becoming more persuaded that focus peaking would be nice to have in my next camera. But I do not understand that last sentence (underlined above): aren't there a number of other cameras that offer both focus peaking and magnified live view for focusing?

You are right. I mean FF.
Title: Re: A7r first impression
Post by: CptZar on December 04, 2013, 04:08:25 am
Congratulations on your acquisition. Would you mind explaining how focus peaking works with this camera? I have a D800 and now a Pana Lumix m4/3 that has focus peaking with the click of a button. Focusing with the Lumix is so easy.

ACH

You can select three level of focus peaking. Low, Med, High. It's always on then and I guess, beside that it is like on the Lumix. If you choose B&W as default, select red as focus peaking color and increase sharpness, you will get a very accurate picture where the focus lies. The RAW Image will be color anyway.
Title: Re: A7r first impression
Post by: ACH DIGITAL on December 04, 2013, 08:56:15 am
Thank You.!
Title: A7r first impression: mirrorless vs the best of Canon and Nikon DSLRs
Post by: BJL on December 04, 2013, 09:52:30 am
You are right. I mean FF.
I should have guessed. Yes, the A7 and A7r give us the first look at the combination of new "digitally driven" viewfinder and focusing technologies with the "biggest and best" of DSLR sensors, and the opportunity to compare more directly with the best DSLRs from Canon and Nikon.
Title: Re: A7r first impression: mirrorless vs the best of Canon and Nikon DSLRs
Post by: telyt on December 04, 2013, 10:04:23 am
I should have guessed. Yes, the A7 and A7r give us the first look at the combination of new "digitally driven" viewfinder and focusing technologies with the "biggest and best" of DSLR sensors, and the opportunity to compare more directly with the best DSLRs from Canon and Nikon.

The Leica M has a "digitally driven" viewfinder option and a full-frame sensor.  $omewhat le$$ acce$$ible though.
Title: Re: A7r first impression: focusing
Post by: Vladimirovich on December 04, 2013, 11:03:42 am
aren't there a number of other cameras that offer both focus peaking and magnified live view for focusing?

I think that Sony A99 FF (we do not count aps-c, m43 and p&s) camera has both focus peaking and magnification for manual focusing.
Title: Re: A7r first impression
Post by: CptZar on December 04, 2013, 11:28:24 am
Yes, but a translucent mirror and thus you can only use legacy lenses. And I was talking particularly about TS lenses. It's the whole package. Sorry if this was unclear.  But again just my personal opinion.
Title: Re: A7r first impression: mirrorless vs the best of Canon and Nikon DSLRs
Post by: BJL on December 04, 2013, 11:47:44 am
The Leica M has a "digitally driven" viewfinder option and a full-frame sensor.  $omewhat le$$ acce$$ible though.
By 'new "digitally driven" viewfinder and focusing technologies' I meant the whole package: focus peaking, magnified live view at any part of the image and with aperture fully open to make focus effects easier to see, on-sensor AF using both contrast detection and phase detection, etc.
Title: Re: A7r first impression
Post by: MatthewCromer on December 04, 2013, 11:58:21 am
BTW, on my Alpha 65 focus peaking is also very much driven by the image contrast and sharpness settings.  I have a "peaking" preset (max contrast, max sharpness) I go to when I want to use peaking that makes a huge difference.

Peaking isn't a panacea, but it is quite useful.
Title: Re: A7r first impression: mirrorless vs the best of Canon and Nikon DSLRs
Post by: Vladimirovich on December 04, 2013, 12:35:44 pm
on-sensor AF using both contrast detection and phase detection, etc.
A7r does not have PDAF on sensor though... so only A7 satisfies everything  :)
Title: Re: A7r first impression: mirrorless vs the best of Canon and Nikon DSLRs
Post by: telyt on December 04, 2013, 01:45:36 pm
It's sufficient to say the A7 and A7r are the first cameras to offer the feature set of the A7 and A7r  ;)

They're certainly game-changers and I'm looking forward to further developments in this direction, like an A9r  :)
Title: Re: A7r first impression: mirrorless vs the best of Canon and Nikon DSLRs
Post by: BJL on December 04, 2013, 02:32:05 pm
It's sufficient to say the A7 and A7r are the first cameras to offer the feature set of the A7 and A7r  ;)

They're certainly game-changers and I'm looking forward to further developments in this direction, like an A9r  :)
Saying that would only be sufficient if one wished to obfuscate on features like autofocus, and on suitability as an alternative to high end DSLRs --- which are important considerations for many people and were clearly on the mind of the OP. Note the reference to "the best of Canon and Nikon DSLRs" in the subject line of my posts and your reply!

But I agree that, due to my oversight of the lack of on-sensor PDAF in the A7R, we might have to wait for an A9R to "get it all". Or for Canon or Nikon to get serious about mirrorless system cameras. Or for a Leica M model with auto-focus?!
Title: Re: A7r first impression
Post by: BernardLanguillier on December 04, 2013, 05:24:53 pm
I had the chance to use a a7r last weekend and tried the focus peaking function to set manual focus on the eyes of my daughter in a backlit situation.

It may be not have used it properly, but the peaking kept highlight the edges of her face on the bright background and hardly ever highlighted the eyes where I wanted to set the focus, at least not for more than a split second which made manual focusing impossible.

The lens mounted was the new Zeiss 35mm f2.8.

What is the experience of owners on this?

Cheers,
Bernard
Title: Re: A7r first impression
Post by: CptZar on December 04, 2013, 07:46:39 pm
As said, I use B&W as creative mode with, sharpness all the way up. Some use Contrast all the way up, too. I just read this here and will try it. Peaking level is mostly medium, with color red. This gives a very different picture, and red dots are quiet precise then. I did not have problems to focus on the eye. And that with a Canon 50/f1.2 at open aperture. Picture is not processed. Distance to object ca. 1-1.2 m so DOF <= 4mm.

With a color display I was not able to nail the focus.

Could could you focus when the face was not backlit?
Title: Re: A7r first impression
Post by: BernardLanguillier on December 04, 2013, 07:55:20 pm
As said, I use B&W as creative mode with, sharpness all the way up. Some use Contrast all the way up, too.

Are you saying that you need to set the viewfinder to B&W for make focus peaking usable?

Fine when you do B&W photography, but is color not an essential element of composition?

Thank you.

Cheers,
Bernard
Title: Re: A7r first impression
Post by: Vladimirovich on December 04, 2013, 08:12:51 pm
but is color not an essential element of composition?
then you can see the original colors w/ your naked eye instead of quite distorted color in viewfinder and use viewfinder just to frame... it is quite subjective.
Title: Re: A7r first impression
Post by: BernardLanguillier on December 04, 2013, 08:19:07 pm
then you can see the original colors w/ your naked eye instead of quite distorted color in viewfinder and use viewfinder just to frame... it is quite subjective.

Agreed that this works for some subjects like landscape, but you don't need focus peaking for these, or at least is it not essential.

Focus peaking is useful mostly for PJ like scenes with manual lenses.

In my view, it is essential to see in colors in the viewfinder for those occasions when you want to use focus peaking, unless you are doing B&W work of course.

Cheers,
Bernard
Title: Re: A7r first impression
Post by: CptZar on December 05, 2013, 02:21:05 am
But you said, you couldn't focus on an eye. B&W enables you to do that, giving you the best results in critical situations. How would get the eye sharp with the e.g. Canon 50/f1.2, given the parameters I added to the picture, with the eye in the upper right third of the image. The focus points there will not work at that aperture. Only the center double cross focus points.  So will you manual focus through the OVF or use Live view?

Title: Re: A7r first impression
Post by: BernardLanguillier on December 05, 2013, 02:56:23 am
But you said, you couldn't focus on an eye. B&W enables you to do that, giving you the best results in critical situations. How would get the eye sharp with the e.g. Canon 50/f1.2, given the parameters I added to the picture, with the eye in the upper right third of the image. The focus points there will not work at that aperture. Only the center double cross focus points.  So will you manual focus through the OVF or use Live view?

If you really need to position the eye of a subject in the corner of the frame, which I have not done in a single photograph I can remember, then focus and recompose would work on most cameras, no?

I am just trying to understand the actual usefulness of the focus peaking for real world subject. For now I am not convinced that it beings value.

Cheers,
Bernard
Title: Re: A7r first impression
Post by: peterottaway on December 05, 2013, 04:15:44 am
Well you chose a subject and a lens not suited to gain an appreciation of the normal use of focus peaking. If you want to use any 35 mm lens then try some sort of streetscape or if you want to focus on an eye in a portrait then use 85 to 135 mm.
Title: Re: A7r first impression
Post by: CptZar on December 05, 2013, 04:26:17 am
Well, focus and recompose with a DOF of 4mm might be difficult. What about this picture of yours? Could you have done it with a larger aperture and AF on the eyes? At least not at f1.2 with the 5DMIII.

I am not trying to convince anybody. I am writing what is possible. Very personal. I ordered myself a Zeiss Otus 55, trading in my 85/f1.2 and 50/f1.2  and I am sure I can use it much better with an EVF and focus peaking than with any other cam. I wouldn't even have ordered it without FP, or the zooming capabilities of the EVF. Same goes for the TS lenses I use. For this purposes the A7r has much to offer. If you need fast AF, flashes, even a descent remote control cable, this might not be the right camera.  

And by the way, I like your work.

Cheers

Jan

Wow, I just became a junior member!




Title: Re: A7r first impression
Post by: bcooter on December 05, 2013, 05:06:10 am
Was out Christmas shopping tonight and passed a Sony store.

On a semi whim went in to see the A7 (I have zero interest in the R version).

Anyway, probably drove the Sony counter people nuts, but tried every a mount lens they had in the case and  also  had zero interest in the current E mount lenses available now.

The upside in this non photographic test was it focused well, as well as most optical dslrs.  Even track focused on medium fast moving people.

The camera is the exact size of the olympus em-1 and has the familiar look of full frame 35mm in fall off and lens perspective.

The menu is simple, the camera is small, but unlike the olympus, it feels better with larger lenses in the A mount, where the olympus feels a little awkward with larger lenses.

The other upsize (without shooting a file) is it's obvious that this will produce a higher detailed image than the olympus.

The Sony store said they received 9 body/lens combos in that morning and sold all by noon.  (anyone wonder why Sony rushed this to market?)

The other take I have in todays world, it's completely undeniable and if I made Nikons, Canons, Olympus, Phase, etc. etc. this is the one camera that would keep me up at night worrying.

Very unlike a Leica which is a manual focus old world camera box covering electronics and unlike the fuji aps c or olympus  micro 43 camera the full frame lenses work like the lenses we're use to without having to think ok a 25 is a 50 and 1.4 is really F4.

At first I couldn't put my finger on it, but I finally realized the camera feels less like it's made by a camera company, more like it was made by a computer company .  If the logo said Apple or Samsung it would be a perfect fit.   

Great price, great performance, zero romance.   Comparatively the olympus em-1,even with all it's electronics,  feels like it was made by a camera company.  The em-1 has a lot of olympus dna in it, the sony, more computer console.

The switches are functional, feel a little plastic flimsy, almost a little fragile.  The viewfinder is very bright, very, very colorful like the Sony 4k TV that was sitting on the counter.

It makes you wish olympus made a full frame camera, but more importantly makes you realize they don't.

Still you have to take it seriously because for  $1700 you can't deny a camera that shoots to 2500 iso clean, has a really bright viewfinder, tethers, autofocuses, takes nearly every lens made without a crop factor and shoots at a relatively fast fps.

If was picking props for a movie, the Sony would set on the designer desk in a midtown glass apartment of an architect,  where the Olympus would be the prop of a photojournalist.

Bottom line, it's really an amazing camera, even if it has the soul of a smartphone and I don't doubt for a minute it is the future of all cameras. 

This is the first camera (except an Iphone) that I've held that felt like there was zero camera company DNA left in it.   Kind of like going from an old Apple desktop computer with a 30" matte screen to a new 27" Imac.  They kind of do the same thing, but never feel the same.

This is just my take, but Millenials will love it, guys that were raised on film will always feel like they sold out.

I almost bought it that moment, stopped myself and said I might come back.

When i got back to the studio, started pricing out A mount lenses.


IMO

BC
Title: Re: A7r first impression
Post by: MrSmith on December 05, 2013, 05:40:15 am
This camera will mean different things to different people.
If I owned a d800 and shot people or sports then why change?
BC's view picks up relevant aspects to his way of shooting.
Me? I have no interest in how it feels in the hand or AF, or what the menu is like, it will be stuck on a tripod with a 24 and 90 ts-e and a good 50mm I see it as a way of having good DR while not being limited by lens choice if I had a d800.
This is totally dependent on how it will tether though. I don't want raw on card/jpeg only to computer kludges with Lightroom I want a stable sony raw tethering app with a watched folder in to C1.
There is not yet any reliable anecdotal evidence out there re tethering performance though.
Title: Re: A7r first impression
Post by: barryfitzgerald on December 05, 2013, 06:35:49 am
This camera will mean different things to different people.
If I owned a d800 and shot people or sports then why change?
BC's view picks up relevant aspects to his way of shooting.
Me? I have no interest in how it feels in the hand or AF, or what the menu is like, it will be stuck on a tripod with a 24 and 90 ts-e and a good 50mm I see it as a way of having good DR while not being limited by lens choice if I had a d800.
This is totally dependent on how it will tether though. I don't want raw on card/jpeg only to computer kludges with Lightroom I want a stable sony raw tethering app with a watched folder in to C1.
There is not yet any reliable anecdotal evidence out there re tethering performance though.


People tend to get overly excited and make statements that are not necessarily accurate.
"Game changer" "Canikon board members not sleeping at night" etc etc

I'm sure the A7 offers something different and will do ok sales wise. But with a decade of Canikon dominance, a huge user base in those systems, a camera market that's in decline. It's hard to see the A7 as a win win blows everything away product.

A lot of people who have these system cameras ie DSLR's have quite an investment in not only lenses but other areas such as flash. Nikon's excellent CLS and Canon's radio flash are very good and Sony lag here quite a bit. Optics wise Canon have a huge system that caters for all needs at all price points and a vast selection of s/h bodies too for bargain hunters.

It's difficult for me to see Sony grabbing a significant slice of those users, esp when they get compromises using adaptors. AF has been around a while and that's a key point for some users, instantly ruling out the A7 in it's current form. I was surprised Sony didn't nail fast phase detect off the sensor and offer a non SLT A mount adaptor. Like wise I expected them to do IBIS which might have sealed the deal for some.

Once they work out they get a small body with fairly poor battery life, a camera with a partial plastic mount, and they don't even get a charger in the box nor a built in flash to trigger off camera flashes, the appeal drops significantly even for A mount users let alone other mount users. Give it a few months and the hype will die down.
Title: Re: A7r first impression
Post by: eronald on December 05, 2013, 06:43:47 am

This is the first camera (except an Iphone) that I've held that felt like there was zero camera company DNA left in it.   Kind of like going from an old Apple desktop computer with a 30" matte screen to a new 27" Imac.  They kind of do the same thing, but never feel the same.

This is just my take, but Millenials will love it, guys that were raised on film will always feel like they sold out.

BC

J,

and what about planned obsolescence ?

Edmund
Title: Re: A7r first impression
Post by: Ben Rubinstein on December 05, 2013, 07:40:27 am


This is just my take, but Millenials will love it, guys that were raised on film will always feel like they sold out.


BC

I wonder. Mine arrives tomorrow. Seeing it here:

(http://m7.i.pbase.com/g9/94/892094/2/153584417.sdMZVlGu.jpg)

however, I don't know but in my mind, next to my favourite camera of all time, the time has come for FF cameras to be the 'correct' size again.
Title: Re: A7r first impression
Post by: telyt on December 05, 2013, 09:46:12 am
If you really need to position the eye of a subject in the corner of the frame, which I have not done in a single photograph I can remember, then focus and recompose would work on most cameras, no?

With shallow DOF this will just about guarantee missed focus.  Even Canon recommends against focus and recompose.  What they recommend instead is either manual focus or change composition i.e., the camera's focus points dictate composition.  Unacceptable IMHO.
Title: focusing off-center, with no time to recompose
Post by: BJL on December 05, 2013, 10:18:01 am
With shallow DOF this will just about guarantee missed focus.  Even Canon recommends against focus and recompose.  What they recommend instead is either manual focus or change composition i.e., the camera's focus points dictate composition.  Unacceptable IMHO.
Another case is where there is not time to recompose, as with moving subjects. However, I admit to also using the strategy of loose framing with a camera of "excessive" pixel count and then cropping.
Title: Re: A7r first impression
Post by: AFairley on December 05, 2013, 12:30:49 pm
I'm totally pre-sold on the A7r and Zeiss zoom, gotta be the same IQ as the D800E + 24-70 f2.8 in a package 1/2 the weight of the Nikon gear and the same size as the Oly E-M1 plus 12-40 zoom (and about the same weight).  I don't need a constant aperture fast zoom, plus I like the wysiwyg aspect of an EVF for dialing in exposure, as I discovered with the E-M5.
Title: Re: A7r first impression
Post by: MarkL on December 05, 2013, 01:41:42 pm
These two cameras might not be canikon dslr killers today but I think they show the gap is closing rapidly. Some tweaks like phase detect af on the 36mp sensor version, some better battery life and flash system would get even closer. The real issue remains the lens line which is limited and size is still an issue.

however, I don't know but in my mind, next to my favourite camera of all time, the time has come for FF cameras to be the 'correct' size again.

Indeed. I have got a bit fed up with 35mm format cameras being 645 format in size, at least with the D800 it is MFish in resolution. I dislike needing to own a second camera almost soley because a dslr is too imposing and therefore inappropriate in many situations.
Title: Re: A7r first impression
Post by: Harold Clark on December 05, 2013, 02:00:11 pm
These two cameras might not be canikon dslr killers today but I think they show the gap is closing rapidly. Some tweaks like phase detect af on the 36mp sensor version, some better battery life and flash system would get even closer. The real issue remains the lens line which is limited and size is still an issue.

Indeed. I have got a bit fed up with 35mm format cameras being 645 format in size, at least with the D800 it is MFish in resolution. I dislike needing to own a second camera almost soley because a dslr is too imposing and therefore inappropriate in many situations.

The A7R is very appealing to someone like myself, a long time Canon user. About half my work is architecture, and I would love to have the extra resolution and DR this camera could offer, using my TS lenses. I also have a Contax G2, and I expect the lenses from 35mm up would be stellar performers as well. The Canons are great for my other areas  of photography though, editorial, corporate portraits, aerials etc where speed and AF accuracy are important. Many of us have become tired waiting for Canon to produce a high MP/DR camera.
Title: Re: A7r first impression
Post by: ErikKaffehr on December 05, 2013, 02:03:41 pm
Hi,

I don't have a A7r, but I do have an Alpha 99 and an Alpha 77 and I have found it useless for focusing. 11X live view is good for focus.

Best regards
Erik

I had the chance to use a a7r last weekend and tried the focus peaking function to set manual focus on the eyes of my daughter in a backlit situation.

It may be not have used it properly, but the peaking kept highlight the edges of her face on the bright background and hardly ever highlighted the eyes where I wanted to set the focus, at least not for more than a split second which made manual focusing impossible.

The lens mounted was the new Zeiss 35mm f2.8.

What is the experience of owners on this?

Cheers,
Bernard

Title: Re: A7r first impression
Post by: bcooter on December 05, 2013, 02:50:35 pm
I wonder. Mine arrives tomorrow. Seeing it here:

(http://m7.i.pbase.com/g9/94/892094/2/153584417.sdMZVlGu.jpg)

however, I don't know but in my mind, next to my favourite camera of all time, the time has come for FF cameras to be the 'correct' size again.

(http://cameralabs.com/reviews/Olympus_OMD_EM1/images/Olymous_OMD_EM1_top_400.jpg)


If you look at your photo, what photographer wouldn't rather have the Canon?   And do you see my point about the Imac look?

If they made it in all Silver and gold it would be a perfect match for an I phone 5s.

The Olympus is much more like your Canon A1.

Once again the Sony hit more points than just size.  The focus is actually good, I'd say 5d2 good (which isn't perfect but ok).

The camera takes any lens without a crop factor.  For 99% of the users that doesn't mean much, but for people the love old legacy glass, don't pixel peep or worry about the corners going soft, this does mean a lot.

A tilt shift on this camera will be much easier and more accurate to focus with an evf than an optical finder or even the lcd on the back with live view.

I think these sonys are less of a camera more of a roll of electronic  film.  In other words nobody would buy this camera because it strikes an emotional cord.   It's not a leica, rolliflex, or even a contax, but the lenses you can put on it will change the way you work.

Once again a tilt shift where you intentionally throw focus is going to take some thought to shoot, a fast 70 to 200 will just bang away.  The lens will make the difference and unlike traditional dslrs with the same detail it's not a lump of curved weight.  Actually with the larger a mount lenses and adapter it does feel right.  

If you drop on an E mount lens or any M mount lens your into leica small and discreet (except for that loud shutter)

If you fire the shutter the noise it makes is gruesome.  Think slapping wet hand down hard on a glass table followed by a metallic click.  Don't take this camera to Obama's press conference, or your sister's third wedding ceremony because everybody is going to get pissed.

The main thing is, it's cheap.  Jesus it's cheap in the world of full frame.  You can buy two an A7 and A7R for the price of a 1dx or D2x and though the lens case is still going to be large in total it's a smaller package.

It's selling like crazy.  This means third party stuff is going to come out daily.  Lens adapters, video supports, filter holders, they're already appearing.

The A mount lenses are Zeiss and I know from my fs100 putting Zeiss lenses on it almost made that camera useable.  It sure made the file prettier.

Once again, it's cheap.  Just a few years ago, for this quality file, you'd have to spend $12,000 for two bodies and when you went to the next sell them for a $6,000 loss.

I think you can probably use these Sonys for a year, sell them and even if you lose have the value, your only talking around $2,000.

The downside.  It's a Sony and who knows what they'll do.  If it sells well Sony is just strange enough to change it to an all E mount or drop some function if it starts to move into their video camera territory.

I'll be honest, I don't want to buy it, but it is perfect for the work we're doing now.  It's a sexless omd em-1, with a lens format I can understand and honestly I was going to buy an em-1.  When I went to the Sony store I expected it to focus hunt, have a silly menu, strange controls and it doesn't have any of those limitations, but if the em-1 was full frame and even cost more, I'd go there in a heartbeat.

Game changer, yea.  . . . as long as it will tether, because Nikon didn't do it with the DF, Canon is just quiet and I'm very comfortable with electronic viewfinders.  

I've thought long and hard about buying a Leica S2 to go with my Contax lenses and offer more hand held use to medium format,  but how do you spend $15,000 on the first gen Leica S,  when this thing is sitting there?

With the way we work, shooting motion and stills, limited time, lots of setups, the m43 system made sense especially for video.  With stills at 16mpx with a small sensor means your on the edge, even with people based photography.   Head an shoulders your golden, full length, your limited no matter how you work it in post.



IMO

BC


Title: Re: A7r first impression
Post by: MrSmith on December 05, 2013, 03:27:14 pm
I have a similar view to yourself, no big investment (emotional or cash) no clutch of lenses to buy just an outlay on a body and and an adapter that solves a higher MPixel problem that has recently reared its head where there's a possibility of a an ongoing project that the client has insisted on a minimum file size that means d800, but the lenses are expensive and my canon ones better quality.
If it happens I'll buy the sony and metabones adapter for less than £2k and sell it as soon as I'm done with it. Even if doesn't make half the outlay back it's still better business than renting or buying either an MFD or d800 that I have no interest in owning.
Title: Re: A7r first impression
Post by: TMARK on December 05, 2013, 03:43:05 pm
Cooter wrote:

"I've thought long and hard about buying a Leica S2 to go with my Contax lenses and offer more hand held use to medium format,  but how do you spend $15,000 on the first gen Leica S,  when this thing is sitting there?"

Yeah.  This about sums up my attitude towards Leica.  There is always something offered at 1:5 or even 1:10 the price that is 98% as good.  M8 - X100.  M9 - XPro-1.  S2 - Nikon D800, 645D and this Sony.  In all cases Leica wins out under certain conditions, even if by a hair, and the ergos are always better with the Leica, but it burns my Scotish heart to pay up to 10x as much because it feels better in my hand and the viewfinder is better.  Oh yeah, and the Japanese products don't do too many strange things that kill your file.
Title: Re: A7r first impression
Post by: Isaac on December 05, 2013, 05:20:37 pm
If you look at your photo, what photographer wouldn't rather have the Canon?

Seems a bit baroque to me ;-)

Great price, great performance, zero romance. ... Bottom line, it's really an amazing camera, even if it has the soul of a smartphone and I don't doubt for a minute it is the future of all cameras.

Zero nostalgia. There do seem to be people with, not just a romance but an overwhelming infatuation for their smartphone; so I daresay there'll be a generation who will adore these cameras.

The downside.  It's a Sony and who knows what they'll do.  If it sells well Sony is just strange enough to change it to an all E mount or drop some function if it starts to move into their video camera territory.

otoh
I'm about to eBuy a 25 year-old A-mount Minolta lens for my 2 year-old A-mount Sony camera.
Title: Re: A7r first impression
Post by: allegretto on December 05, 2013, 08:17:29 pm
let's see

about a year ago Sony came out with the RX-1

since then I cannot count how many cameras they have introduced, but it's a LOT. Probably more than any manufacturer.

R&D money must be flowing like cheap champagne around there

when do you think they'll get around to talking to each other...?
Title: Re: A7r first impression
Post by: BJL on December 05, 2013, 09:44:44 pm
I'm totally pre-sold on the A7r and Zeiss zoom ... the same size as the Oly E-M1 plus 12-40 zoom (and about the same weight).
Indeed, the A7R with 24-70/4 is about the same weight as the E-M1 with 12-40 f/2.8. This is the sort of thing that make me skeptical about matching smaller formats with bulky, expensive zooms of constant low minimum f-stop like f/2.8 (let alone f/2 or f/1.8): for about the same size and weight, you could use a somewhat larger format and cover the same FOV range with a longer lens of about f/2.8-4 or constant f/4, so that the greater sensor speed balances out the lower lens speed, and lens designs like f/4 seems easier and can offer options of wider zoom range and such. That is why I wish Olympus and Panasonic would get back to designs like the Olympus Four Thirds pair of f/2.8-3.5 4x zooms and the f/2.8-4 12-60 with its 5x zoom range, instead of all these f/2.8 zooms of more limited range and higher prices. If I wanted to get more speed and less of my image in focus from an expensive zoom lens, I would probably use an "APS-C" format system instead of 4/3", like a Fujifilm X body with 18-55/2.8-4, less expensive and slightly lighter than the Olympus 12-40 (though the wider coverage of the 12-40 could justify some of that).

Still, I hear those old Four Thirds SLR lenses AF quite well with the newer PDAF sensor of the EM1, so I will not complain too much.

On the other hand, that Sony/Zeiss 24-70/4 sacrifices on both brightness and zoom range for low size and weight; I would prefer a more typical f/4 standard zoom range like 24-105 or wider. Likewise with the Fujifilm 18-55: why does nobody yet make exactly the lens I want for a mirrorless system?!
Title: Re: A7r first impression
Post by: eronald on December 05, 2013, 10:09:25 pm
They were talking to each other!
Reason with me:

In the Canon and Sony comparison, notice that both are flatter than most electronics SLRs and yet the Sony needs to have a back display and heatsink, which the Canon does not, hence the flange to sensor distance will be really short - oh wait, that is a good description of the RX1 lens. So I think The RX1 was basically a feasability study for the lens and sensor compatibility issues in the A7.

In the best japanese tradition, they made a product from their study - and disguised their true intent.

Edmund

let's see

about a year ago Sony came out with the RX-1

since then I cannot count how many cameras they have introduced, but it's a LOT. Probably more than any manufacturer.

R&D money must be flowing like cheap champagne around there

when do you think they'll get around to talking to each other...?
Title: Re: A7r first impression
Post by: Vladimirovich on December 05, 2013, 11:28:30 pm
If I wanted to get more speed and less of my image in focus from an expensive zoom lens, I would probably use an "APS-C" format system instead of 4/3", like a Fujifilm X body with 18-55/2.8-4, less expensive and slightly lighter than the Olympus 12-40 (though the wider coverage of the 12-40 could justify some of that).
why 'd you want to aggravate yourself with subpar Fuji AF /even w/ all those firmware patches/ vs m43 one ;) , if is AF zoom... you are not getting it to focus manually, are you ?
Title: Re: A7r first impression
Post by: Vladimirovich on December 05, 2013, 11:33:25 pm
though the wider coverage of the 12-40 could justify some of that
5mm wider... that's A LOT.
Title: Re: A7r first impression
Post by: barryfitzgerald on December 06, 2013, 06:21:26 am
As the Canon images show, none of the makers has managed the small lenses design goal.

A7 small body big lenses
APS-C offerings the same
Micro 4/3 has small lenses, but only because the sensor is smaller, ditto Nikon 1 and the tiny sensor Pentax Q

I for one find it quite comical makers are trying to sell this "smaller better" take when the lenses they have are actually bigger than normal DSLR lenses.

Partly down to design I believe (ie they have trouble at the extreme edges esp on full frame even with micro lenses)
In lens motors and IS on some lenses
Electronic aperture control probably adds some size too.

I've plenty of old full frame screw driven lenses that are quite a bit more compact than anything Sony can put out on E mount
Personally I don't see the point of a compact body with not that compact lenses

The only way around it is to offer mostly pancake primes like Pentax does. You'll never get a small full frame zoom lens in a million years.
Title: Re: A7r first impression
Post by: barryfitzgerald on December 06, 2013, 07:22:01 am
Leica, small bodies, small lenses.

Big price.

There is Voigtländer
The affordable Leica  :P

Shame they don't do a digital body option, but they have some good lenses at decent prices
Title: Re: A7r first impression
Post by: scooby70 on December 06, 2013, 09:12:01 am
There seems to be something very odd here with folk saying the A7 is an iphone...  ???

I spent many years in the computer industry so maybe I'd be many peoples idea of a geek but all of my life I've considered myself to be an artist, an artist who graduated away from paint, pencil and paper and towards cameras and film and then on to digital. Anyway, I like to think that I see both sides but I just don't get the view that gthe Sony is a soulless mobile phone type device.

Maybe it's the name on the camera that people have the real issue with?

BTW. I'm using my A7 with manual Rokkor and Zuiko lenses, the magnified view is wonderful, precise focus is possible to a degree beyond any conventional DSLR and I've found focus peaking to be very accurate.
Title: Re: A7r first impression
Post by: BJL on December 06, 2013, 10:07:02 am
why 'd you want to aggravate yourself with subpar Fuji AF ...
To clarify: I am not actually choosing the Fujifilm X system (at least for now); I just used the example of that f/2.8-4 lens for its speed/size/cost trade-off.

Cynically, one thing that MFT has going for it is that none of the other mirrorless systems has yet put together the full package of good sensor-based AF, good IS, good EVF options, and a good wide selection of native lenses, including things like a good "step up from entry level" standard zoom of about 4x to 5x zoom range and the "24mm equivalent" wide-angle coverage that most people seem to prefer these days. Limiting to "28mm" equivalent is for me a sacrifice to size and cost reduction that belongs only at the entry-level. (That is, I agree with your "5mm is a lot".)
Title: Re: A7r first impression
Post by: JV on December 06, 2013, 10:43:42 am
why 'd you want to aggravate yourself with subpar Fuji AF /even w/ all those firmware patches/ vs m43 one ;) , if is AF zoom... you are not getting it to focus manually, are you ?

Fuji AF works really well for me.  I am really sorry it doesn't work for you. 
Title: Re: A7r first impression
Post by: Vladimirovich on December 06, 2013, 12:22:24 pm
Fuji AF works really well for me.  I am really sorry it doesn't work for you. 
that's an elegant way to acknowledge that I was correct, thank you.
Title: Re: A7r first impression
Post by: JV on December 06, 2013, 01:00:57 pm
that's an elegant way to acknowledge that I was correct, thank you.

I am very pleased with the speed and the accuracy of the Fuji AF.  I don't shoot moving targets, so I have no need for focus tracking
Title: Re: A7r first impression
Post by: Isaac on December 06, 2013, 02:06:17 pm
about a year ago Sony came out with the RX-1... since then I cannot count how many cameras they have introduced, but it's a LOT. Probably more than any manufacturer.

Including P&S and the weird smart phone thingies dpreview lists 20 (http://www.dpreview.com/products/sony/cameras?subcategoryId=cameras) in 2013.

For Nikon dpreview lists 21. For Canon 17.

Quote
"We’re creating a market, which is vital in this industry, otherwise the market will be squeezed. If a customer doesn’t see anything new, they won’t be motivated to buy additional cameras. For Sony to improve our brand image within the camera industry we need to use technology. We need to change the world.
...
In terms of interchangeable lens cameras, the biggest companies of course are Canon and Nikon, they have the legacy support, so in order to attract customers we have to give them a good reason to come to Sony. So we’re trying to make cameras which are desirable in addition to maybe a Canon or Nikon system. And in order for us to do that we have to create unique cameras that Canon and Nikon don’t offer (http://www.dpreview.com/articles/9689111831/every-six-months-i-want-to-do-something-new-kimio-maki-of-sony?utm_campaign=internal-link&utm_source=news-list&utm_medium=text&ref=title_0_27)."
 
Title: Re: A7r first impression
Post by: barryfitzgerald on December 06, 2013, 03:07:06 pm
That's the root of Sony's problem, this obsession with trying to make "new products"

They've yet to work out "New + Stupid" = failure (QX100 remarkably dumb concept amazed they actually put money into such a strange product)
Better to make what people want.

People carry a smartphone around with a camera built in, what on earth made Sony think they want to buy a bulky add on lens? The reason phones like that are popular a few reasons, one being a mini pc and connectivity email facebook etc. The other is compact size camera built in, not bulky add on.
They surely have some very odd people working at the company.

And need I mention the complete lack of touch controls on any Sony camera. Whilst I don't want to see buttons and dials gone, they have yet to offer this and it can work pretty well (70d being an example) Talk about miss the obvious.
Title: Re: A7r first impression
Post by: Isaac on December 06, 2013, 03:14:57 pm
Obviously they don't have your extensive market research data ;-)

And need I mention the complete lack of touch controls on any Sony camera. ... Talk about miss the obvious.

Do you just make stuff-up?

September 2011 (http://www.dpreview.com/reviews/sonynex5n), Sony NEX-5N Review -- "The 5N's new stand-out feature is the introduction of a touchscreen that provides alternative access the the camera's operational controls, as well as adding few additional features that take advantage of this input method."
Title: Re: A7r first impression
Post by: barryfitzgerald on December 06, 2013, 03:48:50 pm
I don't use NEX I use Alpha mount. There are no A mount touch screen cameras
I have used a 70d though and it works surprisingly well.

As this thread is about the A7 I guess you missed the fact that doesn't have touch screen controls either.
Making stuff up? Maybe time to check some details before you hit the post button.
Title: Re: A7r first impression
Post by: allegretto on December 06, 2013, 04:15:23 pm
Including P&S and the weird smart phone thingies dpreview lists 20 (http://www.dpreview.com/products/sony/cameras?subcategoryId=cameras) in 2013.

For Nikon dpreview lists 21. For Canon 17.
  

you're tight, I'm sure

but was thinking about cameras aimed at more the P&S. And of course Barry notes the one I love best, the QX series. Fire that guy...

too many new mid-high end models and few lenses relatively speaking I guess. Two distinct types

arrrgh
Title: Re: A7r first impression
Post by: bcooter on December 06, 2013, 05:54:55 pm
Cooter wrote:

"I've thought long and hard about buying a Leica S2 to go with my Contax lenses and offer more hand held use to medium format,  but how do you spend $15,000 on the first gen Leica S,  when this thing is sitting there?"

Yeah.  This about sums up my attitude towards Leica.  There is always something offered at 1:5 or even 1:10 the price that is 98% as good.  M8 - X100.  M9 - XPro-1.  S2 - Nikon D800, 645D and this Sony.  In all cases Leica wins out under certain conditions, even if by a hair, and the ergos are always better with the Leica, but it burns my Scotish heart to pay up to 10x as much because it feels better in my hand and the viewfinder is better.  Oh yeah, and the Japanese products don't do too many strange things that kill your file.

Leica is there own worst enemy.

Beautiful cameras, great lenses, (mostly), crazy expensive and always a glitch.  Slow tethering with the S2, slightly better with the S, non tethering with the M.

Everybody that works professionally has to show an image to a client and though I wish tethering never existed, it is the standard of professional production and yes I would tether an M.

I'd love an S2 or S, but it's a limited device even if the file is 20% deeper, because I can fake a 20% deeper file.

Now Leica isn't alone at this.   Olympus hobbles themselves with video and tethering, Fuji doesn't tether and takes a while for lenses and their autofocus is limited and the one small mirrorless camera with great autofocus and usability (the gh3) has a less than equal still file.

Even the A7(r) which I do think changes things, is suppose to tether, but nobody says exactly how or when and it's not a usb3 camera it's a usb 2.

This must take forever to tether on the A7R with 30 something mpx.

I know that Leica may be bling proof given their name, but I find it hard to believe that the Sonys and Fujis haven't had an impact on their sales.

Some things I don't understand.

IMO

BC
Title: Re: A7r first impression
Post by: Isaac on December 06, 2013, 06:19:44 pm
There are no A mount touch screen cameras

Maybe if you'd checked what you wrote before you hit the post button -- "And need I mention the complete lack of touch controls on any Sony camera."
Title: Re: A7r first impression
Post by: Isaac on December 06, 2013, 06:28:53 pm
but was thinking about cameras aimed at more the P&S

They're all listed, so count up the ones you want to count (http://www.dpreview.com/products/sony/cameras?subcategoryId=cameras).

And of course Barry notes the one I love best, the QX series. Fire that guy...

That guy seems to be the guy who brought you the a7.

too many new mid-high end models and few lenses relatively speaking I guess. Two distinct types

How many "mid-high end models" did Nikon have? Count them. (http://www.dpreview.com/products/nikon/cameras?subcategoryId=cameras&sort=Chronological&view=Grid)
How many "distinct types" does Nikon have?
Title: Re: A7r first impression
Post by: eronald on December 06, 2013, 07:44:30 pm
J,

Tethering basically assumes a robust multitasking environment. Most of these camera corps have been flogging the same ROMS for ages, they don't have the will to rewrite for the few percent who want to tether, if it wasn't in the original specs.

But fear not, with the abundance of iThings, connectivity is becoming a must-have feature for the next gen.
Edmund

PS wouldn't one of those eyefi cards help, maybe?

Leica is there own worst enemy.

Beautiful cameras, great lenses, (mostly), crazy expensive and always a glitch.  Slow tethering with the S2, slightly better with the S, non tethering with the M.

Everybody that works professionally has to show an image to a client and though I wish tethering never existed, it is the standard of professional production and yes I would tether an M.

I'd love an S2 or S, but it's a limited device even if the file is 20% deeper, because I can fake a 20% deeper file.

Now Leica isn't alone at this.   Olympus hobbles themselves with video and tethering, Fuji doesn't tether and takes a while for lenses and their autofocus is limited and the one small mirrorless camera with great autofocus and usability (the gh3) has a less than equal still file.

Even the A7(r) which I do think changes things, is suppose to tether, but nobody says exactly how or when and it's not a usb3 camera it's a usb 2.

This must take forever to tether on the A7R with 30 something mpx.

I know that Leica may be bling proof given their name, but I find it hard to believe that the Sonys and Fujis haven't had an impact on their sales.

Some things I don't understand.

IMO

BC
Title: Re: A7r first impression
Post by: Telecaster on December 06, 2013, 09:42:44 pm
PS wouldn't one of those eyefi cards help, maybe?

I have an Eye-Fi SD card in my Pentax for image transfer to iDevices. Useful for sure, but it ain't tethering by a long shot. If Sony chooses to upgrade its WiFi app(s) maybe it'll get closer to tethering-like capability with the A7(r). We shall see...

-Dave-
Title: Re: A7r first impression
Post by: ErikKaffehr on December 07, 2013, 01:48:33 am
Hi,

I don't know if professional studio photographers are Leica's main market. I am not that sure that Leica is that expensive, it may just be an example of small scale production in  Europe being expensive. Japanese firms operating on a larger scale like Sigma can invest a lot in rational production, so economics of scale comes into play. I would also expect Leica to have tighter tolerances than say Sigma.

The M-series is very different from the S-series. M-series firmware was developed by Jenoptik while the S-series was developed at Leica according to the Leica factory visit video here on LuLa.

Diglloyd reports a lot on Leica, and it seems that he had quite a few problems with different lenses, so I guess that Leica may have a few problems in the Quality Assurance department.

Best regards
Erik



Leica is there own worst enemy.

Beautiful cameras, great lenses, (mostly), crazy expensive and always a glitch.  Slow tethering with the S2, slightly better with the S, non tethering with the M.

Everybody that works professionally has to show an image to a client and though I wish tethering never existed, it is the standard of professional production and yes I would tether an M.

I'd love an S2 or S, but it's a limited device even if the file is 20% deeper, because I can fake a 20% deeper file.

Now Leica isn't alone at this.   Olympus hobbles themselves with video and tethering, Fuji doesn't tether and takes a while for lenses and their autofocus is limited and the one small mirrorless camera with great autofocus and usability (the gh3) has a less than equal still file.

Even the A7(r) which I do think changes things, is suppose to tether, but nobody says exactly how or when and it's not a usb3 camera it's a usb 2.

This must take forever to tether on the A7R with 30 something mpx.

I know that Leica may be bling proof given their name, but I find it hard to believe that the Sonys and Fujis haven't had an impact on their sales.

Some things I don't understand.

IMO

BC
Title: Re: A7r first impression
Post by: bcooter on December 07, 2013, 03:55:12 am
Hi,

I don't know if professional studio photographers are Leica's main market. I am not that sure that Leica is that expensive, it may just be an example of small scale production in  Europe being expensive. Japanese firms operating on a larger scale like Sigma can invest a lot in rational production, so economics of scale comes into play. I would also expect Leica to have tighter tolerances than say Sigma.

The M-series is very different from the S-series. M-series firmware was developed by Jenoptik while the S-series was developed at Leica according to the Leica factory visit video here on LuLa.

Diglloyd reports a lot on Leica, and it seems that he had quite a few problems with different lenses, so I guess that Leica may have a few problems in the Quality Assurance department.

Best regards
Erik





I would think anyone is Leica's market, at least anyone that buys their products

You buy an M that doesn't tether. (actually it did for the first ten minutes of the m8)., you don't buy that camera again and their metrics show nobody that buys leica tethers, so they don't worry about it.

Anyway, everytime I plug anything into my macs a window appears and says camera not found, so obviously it's looking for some type of protocol.  

With the em-5 I've used the wi-fi, too flaky even with shutter snitch, too slow.   In testing it works fine, real world not.

If you work with others you have to show the image.  Period.  It's expected, it's just standard.  You may not do it every job, but you will have to do it and if your camera system doesn't allow it, you'll change systems.

Save with video.  If you don't use secondary monitors then your not shooting for money.  

Anyway, the best way to approach this is to make a user pay for it.  Software or hardware.   Why not put ethernet in a right angle grip and if you want it you just buy it?


IMO

BC
Title: Re: A7r first impression
Post by: eronald on December 07, 2013, 04:42:39 pm
J,

 Don't worry, be happy. In a couple of years everything will have good wifi.
 In the mean time, those that don't (tether) just can't and won't.

Edmund


I would think anyone is Leica's market, at least anyone that buys their products

You buy an M that doesn't tether. (actually it did for the first ten minutes of the m8)., you don't buy that camera again and their metrics show nobody that buys leica tethers, so they don't worry about it.

Anyway, everytime I plug anything into my macs a window appears and says camera not found, so obviously it's looking for some type of protocol.  

With the em-5 I've used the wi-fi, too flaky even with shutter snitch, too slow.   In testing it works fine, real world not.

If you work with others you have to show the image.  Period.  It's expected, it's just standard.  You may not do it every job, but you will have to do it and if your camera system doesn't allow it, you'll change systems.

Save with video.  If you don't use secondary monitors then your not shooting for money.  

Anyway, the best way to approach this is to make a user pay for it.  Software or hardware.   Why not put ethernet in a right angle grip and if you want it you just buy it?


IMO

BC
Title: Re: A7r first impression
Post by: Ray on December 07, 2013, 09:59:59 pm
The dynamic range is amazing. You push a totally dark image all the way up, and there is no color bending. It stays absolutely clean. Impossible on the 5DIII which will then always give you color artifacts.

Has anyone noticed that the DR of the A7r at ISO 200 is not as good as that of the D800E?

At ISO 100 they are pretty close, the D800E being only 0.26 EV better. But at ISO 200, the D800E is 0.71 EV better, which is quite significant at almost 3/4ths of a stop.
Title: Re: A7r first impression
Post by: Telecaster on December 07, 2013, 10:53:40 pm
Has anyone noticed that the DR of the A7r at ISO 200 is not as good as that of the D800E?

At ISO 100 they are pretty close, the D800E being only 0.26 EV better. But at ISO 200, the D800E is 0.71 EV better, which is quite significant at almost 3/4ths of a stop.

Well, six stops of DR (Fuji Astia...more or less) is significant compared to five stops (most other transparency films). Yet, that didn't stop Velvia from being far more popular than Astia.   ;)  What are we dealing with here? Twelve stops vs. 12.75 or thereabouts? Not insignificant but not something to get exercised about either (IMO). Post work is likely to render that amount of difference moot.

-Dave-
Title: Re: A7r first impression
Post by: Ray on December 08, 2013, 08:22:35 am
Well, six stops of DR (Fuji Astia...more or less) is significant compared to five stops (most other transparency films). Yet, that didn't stop Velvia from being far more popular than Astia.   ;)  What are we dealing with here? Twelve stops vs. 12.75 or thereabouts? Not insignificant but not something to get exercised about either (IMO). Post work is likely to render that amount of difference moot.

-Dave-

In the days of film it would have taken more expertise than most photographers possessed to get a Velvia appearance from an Astia film in the darkroom, would it not?  ;)

A  DR advantage of 0.71 stops might not be something to get excited about, yet I recall just a few years ago the great excitement when Nikon produced its first full-frame DSLR, the D3. It was praised because of its extraordinary high-ISO performance which at ISO 3200 was a whopping 1/2 stop better than the 2-year-old Canon 5D, according to my own tests, and according to DXOMark test results which appeared later.  ;)

Title: Beware of outliers in experimental data with sample size of one
Post by: BJL on December 08, 2013, 09:46:03 am
Has anyone noticed that the DR of the A7r at ISO 200 is not as good as that of the D800E?

At ISO 100 they are pretty close, the D800E being only 0.26 EV better. But at ISO 200, the D800E is 0.71 EV better ...
... and at all higher ISO speed settings, the difference goes away.

A single measurement like that which falls outside the trend of all other measuremements (and what we might expect based on the evidence that the two cameras use essentially the same sensor) and comes from measurements on a single sample of each camera, should be treated with skepticism. It might be real (weird Sony firmware?), but it is also quite likely to be due to measurement error or sample variation.

Also, if this 0.7 notch worries anyone, it can be avoided by setting the A7R to ISO 100 while still choosing exposure levels as if one were at ISO 200. (Ray, you are aware of this approach, are you not?)
Title: Re: A7r first impression
Post by: eronald on December 08, 2013, 10:08:57 am
Well, six stops of DR (Fuji Astia...more or less) is significant compared to five stops (most other transparency films). Yet, that didn't stop Velvia from being far more popular than Astia.   ;)  What are we dealing with here? Twelve stops vs. 12.75 or thereabouts? Not insignificant but not something to get exercised about either (IMO). Post work is likely to render that amount of difference moot.

-Dave-

For any current CMOS sensor, 1.5 stops at the top may be victim to a shoulder, and therefore not give clean color, 2 stops at the bottom can be throwaway (banding etc), 1 stop is lost to channel mismatch due to unbalanced light. What remains?

Edmund
Title: Re: A7r first impression
Post by: MrSmith on December 08, 2013, 10:22:03 am
"... and at all higher ISO speed settings, the difference goes away."

Not a pixel peeping scientist but I wonder if that's because of different native iso's and how the doubling of ISO can be less noisy than an intermediate setting like using 160-320-640 etc on the 5dIII?
Title: that DR notch at ISO 200 is not reflected in any other measurements
Post by: BJL on December 08, 2013, 11:44:18 am
"... and at all higher ISO speed settings, the difference goes away."

Not a pixel peeping scientist but I wonder if that's because of different native iso's and how the doubling of ISO can be less noisy than an intermediate setting like using 160-320-640 etc on the 5dIII?
Looking at the data at  http://www.dxomark.com/Cameras/Compare/Side-by-side/Sony-A7R-versus-Nikon-D800E___917_814 I do not think that is the reason. The sensors seem to have the same base ISO speed of 73 (probably because they are essentially the same sensor, just used a bit differently) and the readings are all at the "mainline" ISO settings of 100, 200, 400 ...

There is no corresponding discrepancy in 18% SNR, or in the DxO measurement of sensitivity on its so-called "ISO" graph, or in any of the other DxO measurements, which if anything raises my suspicions of a glitch in measurement or in the processing (by Sony's firmware or the raw convertor).
Title: Re: Beware of outliers in experimental data with sample size of one
Post by: Ray on December 08, 2013, 07:53:27 pm
... and at all higher ISO speed settings, the difference goes away.

Indeed it does. However, I happen to find ISO 200 one of the more frequently used settings. If most of my shots were at ISOs of 400 and above, I wouldn't be so concerned.

I recall when I switched from using the Canon 5D to the Nikon D700, I found that the higher base ISO of the D700 a tremendous benefit. At its base ISO of 200, the D700 had a full stop better DR than the Canon 5D had at ISO 100, and furthermore the D700 at ISO 200 was not worse in any other parameter, such as color sensitivity, and still marginally better with regard to SNR at 18%, compared with the 5D at ISO 100.

Using a shutter speed that's sometimes unnecessarily fast is not usually a problem and will tend to result, overall, in fewer rejects due to camera shake and/or unwanted subject movement.

Quote
A single measurement like that which falls outside the trend of all other measurements (and what we might expect based on the evidence that the two cameras use essentially the same sensor) and comes from measurements on a single sample of each camera, should be treated with skepticism. It might be real (weird Sony firmware?), but it is also quite likely to be due to measurement error or sample variation.

Quite so, which is why I asked the question, "Has anyone noticed that the DR of the A7r at ISO 200 is not as good as that of the D800E?". If one suspects that a DXO reading might be a glitch or an error, it's advisable to test the situation for oneself, if one is able to. That's what I do. For most of us, it's the practical significance of those DXOmark readings that count.

One should also bear in mind that there are previous examples of Nikon and Sony using the same sensor in their respective models, yet the test results have been significantly different in some respects. So we know that there can be other features in a camera, whether software, firmware or hardware, that can affect the final result from the bare-bones sensor.

Quote
Also, if this 0.7 notch worries anyone, it can be avoided by setting the A7R to ISO 100 while still choosing exposure levels as if one were at ISO 200. (Ray, you are aware of this approach, are you not?)

Indeed you can. If the DXO test result is correct, then a 1 stop underexposure at ISO 100 should result in the same DR as the same exposure used at an ISO 200 setting, but that DR from the A7r will still be 0.71 EV worse than the DR that the D800E produces in exactly the same circumstances at an ISO 200 setting.
Title: Re: A7r first impression
Post by: Ray on December 08, 2013, 08:13:13 pm
For any current CMOS sensor, 1.5 stops at the top may be victim to a shoulder, and therefore not give clean color, 2 stops at the bottom can be throwaway (banding etc), 1 stop is lost to channel mismatch due to unbalanced light. What remains?

Edmund

Edmund,
If we're comparing the A7r with the D800E at ISO 200, then what remains is at least 2/3rds of a stop of cleaner shadows in the D800E image. In circumstances where you need to throw away 2 stops at the bottom, using the A7r, you need to throw away only 1.29 stops with the D800E. I've noticed no banding from the D800E in the deep shadows.
Title: Re: A7r first impression
Post by: Telecaster on December 08, 2013, 11:31:42 pm
Seems to me that folks who're seriously concerned about maximizing DR and minimizing noise with the Sonys will figure out empirically how far they can push exposure TTR, at base ISO and when gained up, without compromising highlights. Then we'll see how they stack up against other similarly maximized cameras. This oughtta expose any firmware/data compression issues Sony may want/need to address.

As someone just standing back & watching this saga unfold, I've gotta say it's been fun so far.   :)

-Dave-
Title: Re: A7r first impression
Post by: bcooter on December 09, 2013, 05:04:41 am
Seems to me that folks who're seriously concerned about maximizing DR and minimizing noise with the Sonys will figure out empirically how far they can push exposure TTR, at base ISO and when gained up, without compromising highlights. Then we'll see how they stack up against other similarly maximized cameras. This oughtta expose any firmware/data compression issues Sony may want/need to address.

As someone just standing back & watching this saga unfold, I've gotta say it's been fun so far.   :)

-Dave-

The digital world is just fixated on shadows (see the thread of 300 charts and comparisons).

Personally to me shadows are dark and honestly cleaning noise out of a shadow is not a big deal, though I don't shoot glass smooth objects.

If anything I look for in a digital file is the transitions from shadows to midtone to highlight and the big one, holding highlights or better put, having highlights that ramp naturally and don't just burn out.

Anyway, to me it all depends on who they build these cameras for.   I saw a you tube video that Sony produced in Japanese that was very pretty and they featured a film maker, a scenic art photographer and I think a commercial fashion photographer.

For the film maker, it seemed rather odd as the video samples I've seen look ok, but the video specs aren't overwhelming.  The art photographer makes sense because of the 35 mpx and the fashion guy, well it was hard to tell, though they did show him tethering.

Like you I've decided to probably wait and see and I have so many platforms now it's getting obscene.  I jumped into 43 for the video functions and the olympus em5 just because I had the lens set and I just like the cameras, but to go the Sony route, it would have to be a replacement for either Canon or Nikon, at least for me and I'm not sure it will replace those two makers.  Probably replace my Nikons more than the Canons, but I'm probably opposite in that thought.

I'd really like to know Sony's roadmap for this series.   With Panasonic it's widely known they will produce a robust 4k camera early next year.    That interests me a lot if the camera shoots a pretty file.

For Olympus I don't know where they're going and maybe the em-1 is the limit for them, but I wish they track focused better, at least my em-5.  If it did I'd probably buy a second em-5 body because the prices are rock bottom right now and I've grown accustom to thinking 1.8 is a normal setting.

For what it's worth I've found if you set up the olympus for no noise reduction and cut the contrast, cut the sharpness (which I believe is set to over sharp) cut the saturation and keep the iso at even numbers, high iso is much cleaner and the file is much more workable.

With Sony, it's kind of wait and see, though the camera does look very interesting.

IMO

BC
Title: Re: A7r first impression
Post by: Isaac on December 09, 2013, 02:09:34 pm
After years of hiking around villages built into the sides of mountains and resembling a human mule train loaded with gargantuan stuff, ...

"In earlier days I could climb thousands of feet, on or off trails, carrying a backpack load of fifty or sixty pounds, with the ease and abandon of a mountain goat. I now realize how wonderful those days were and what reserves of strength and endurance we had when only twenty or thirty years old! I wish I had kept up my full physical activities when I was forty and older, but I became more sedate as the years passed, spending more time in the darkroom and at the typewriter." 

page 15, Examples: The Making of 40 Photographs, Ansel Adams.
Title: Re: A7r first impression
Post by: Isaac on December 09, 2013, 02:10:28 pm
I'd really like to know Sony's roadmap for this series.   With Panasonic it's widely known they will produce a robust 4k camera early next year.

Yeah, fwiw --

Quote
At the press screening (http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fwww.fotosidan.se%2Fcldoc%2Fsony-a7-och-a7r-tva-fullformatare.htm) told Yoshiyuki Nogama to a video-oriented SLR with A-mount is going on. It will compete with the Canon EOS 5D Mark III will have Ultra HD (4K). We guess that it is a further development of the Sony A99. Sony boss also told that Sony later comes with a really fast camera for action photography.
Title: Re: A7r first impression
Post by: Ray on December 09, 2013, 08:27:55 pm
"In earlier days I could climb thousands of feet, on or off trails, carrying a backpack load of fifty or sixty pounds, with the ease and abandon of a mountain goat. I now realize how wonderful those days were and what reserves of strength and endurance we had when only twenty or thirty years old! I wish I had kept up my full physical activities when I was forty and older, but I became more sedate as the years passed, spending more time in the darkroom and at the typewriter." 

page 15, Examples: The Making of 40 Photographs, Ansel Adams.

There's no doubt that a weight saving of around 400 gm, comparing a D800E body with an A7r body with metabones adapter attached, is worth something when holding the camera in hand, or walking with camera strapped around one's neck.

However, a weight saving of 400 gm in relation to the total weight of all the photographic gear one might be carrying whilst trekking in the countryside, including lenses, spare batteries, charger, and tripod etc, might be trivial.

I would rather get that saving of 400 gm by losing a bit of fat from around my tummy. That would be far cheaper than buying a new camera, and better for my health too.  ;D
Title: Re: A7r first impression
Post by: Telecaster on December 09, 2013, 08:29:00 pm
For what it's worth I've found if you set up the olympus for no noise reduction and cut the contrast, cut the sharpness (which I believe is set to over sharp) cut the saturation and keep the iso at even numbers, high iso is much cleaner and the file is much more workable.

Yes! For the JPEGs I use the Muted profile too. The E-M5 already applies a healthy dose of USM to the RAW data...no need for any more IMO until you downsample for screen or prepare to print. The E-M1 is gentler in this regard.

When I look at all my new camera bags containing all my new gear (in my defense, first new gear since early 2008) I feel like I've eaten too many coney dogs at my favorite diner.   :-\  Time to get off my arse and do some working out.

-Dave-
Title: Re: A7r first impression
Post by: bcooter on December 10, 2013, 02:44:45 am
Yes! For the JPEGs I use the Muted profile too. The E-M5 already applies a healthy dose of USM to the RAW data...no need for any more IMO until you downsample for screen or prepare to print. The E-M1 is gentler in this regard.

When I look at all my new camera bags containing all my new gear (in my defense, first new gear since early 2008) I feel like I've eaten too many coney dogs at my favorite diner.   :-\  Time to get off my arse and do some working out.

-Dave-


Today I got outside for a few hours and since I've been in editing for a long time, I kind of feel like someone in house arrest had their ankle bracelet fall off.

Anyway, took all my 43's to the one of the two remaining camera stores in the area and mostly messed with the em-1.  Your right, not as much oversharpening.  I actually set it exactly to my em-5 and to me it look almost out of focus compared to the em-5 and I have the em-5 sharpness and contrast turned down to -2, so when I go to post I'm almost there.

It's funny the em-1 felt lighter to me than the em-5 and I dunno I guess I'm use to the em-5 but I like the feel better than the new one.  The em-1 will track focus, not high speed quick on continuous but at least it will track, where the em-5 doesn't.  It also has less shading comp so less vignetting and i like that smooth fall off.

I expect the em-1 to be more robust but it didn't feel that way to me.  It feels more standard kind of a horizontal camera, where the em1 is almost square with the grip and feels like a vertical camera.  (if that makes sense).

I haven't looked at the raw files yet, as I'm back in solitary, but one thing about the em-1 is it has a HUGE viewfinder.    Jeeezzz.  If medium format had a finder like that the medium format haters would be silent and guys that owned canon and nikon would be dancing in the street, or in Simons case the sheep fields. (insert smiley thing).

Still, I can't get past the Sony, I think it's pretty amazing the more I see of it the more I like the way it feels, but only with the A lenses, adapter and the right angle grip which makes it 5d2 size.

But like you, it's time to not worry about equipment and if I get another release permit I'll go make some pretty photographs.  We have a project coming in and I want to do a really elaborate personal concept before the paying gig starts.

BC
Title: Re: A7r first impression
Post by: eronald on December 10, 2013, 03:59:55 am
Edmund,
If we're comparing the A7r with the D800E at ISO 200, then what remains is at least 2/3rds of a stop of cleaner shadows in the D800E image. In circumstances where you need to throw away 2 stops at the bottom, using the A7r, you need to throw away only 1.29 stops with the D800E. I've noticed no banding from the D800E in the deep shadows.

If it works, hang on to it. You may have a really good sample.

Edmund
Title: Re: A7r first impression
Post by: aaykay on December 10, 2013, 08:37:04 am
There's no doubt that a weight saving of around 400 gm, comparing a D800E body with an A7r body with metabones adapter attached, is worth something when holding the camera in hand, or walking with camera strapped around one's neck.

However, a weight saving of 400 gm in relation to the total weight of all the photographic gear one might be carrying whilst trekking in the countryside, including lenses, spare batteries, charger, and tripod etc, might be trivial.

I would rather get that saving of 400 gm by losing a bit of fat from around my tummy. That would be far cheaper than buying a new camera, and better for my health too.  ;D

Don't know but it is not the 400gms alone....it is the overall massive bulk that I want to get rid of, when I move away from a big, bulky DSLR.  You seem to prefer the bulk and that's perfectly fine.  Till the A7R came along, I personally had no option but to carry the bulk around, since a large FF sensor was not available in such a petite body.....now things are different. 

Yeah, we could nitpick all day long about  a half stop gain here or a fraction of an ISO there, but the bulk and the weight are just undeniable when it comes to carting along a traditional mirror-box equipped body.
Title: Re: A7r first impression
Post by: Ray on December 10, 2013, 10:07:47 am
Don't know but it is not the 400gms alone....it is the overall massive bulk that I want to get rid of, when I move away from a big, bulky DSLR.  You seem to prefer the bulk and that's perfectly fine.  Till the A7R came along, I personally had no option but to carry the bulk around, since a large FF sensor was not available in such a petite body.....now things are different. 

Yeah, we could nitpick all day long about  a half stop gain here or a fraction of an ISO there, but the bulk and the weight are just undeniable when it comes to carting along a traditional mirror-box equipped body.


Of course I don't prefer unnecessary bulk and weight. I'm not silly. ;)  If I didn't already use a couple of Nikon bodies and a few Nikkor lenses, I'd probably consider the A7r, with Metabones adapter to suit my Canon lenses, a worthwhile upgrade.

Even if the camera wasn't lighter and less bulky, the higher resolution and better DR at low ISOs would make it a worthwhile upgrade to replace any current Canon DSLR, provided the adapter provides full functionality.

However, in my situation, the only advantage I can see is a 400 gm reduction in weight which is offset by the disadvantage of an electronic viewfinder (I don't like them), and a lower DR at the frequently used ISO of 200. I also doubt that there's an adapter that provides full functionality with Nikkor lenses, but I could be wrong.
Title: Re: A7r first impression
Post by: bcooter on December 10, 2013, 02:02:02 pm
Of course I don't prefer unnecessary bulk and weight. I'm not silly. ;)  If I didn't already use a couple of Nikon bodies and a few Nikkor lenses, I'd probably consider the A7r, with Metabones adapter to suit my Canon lenses, a worthwhile upgrade.

Even if the camera wasn't lighter and less bulky, .........

On this forum I think every third post is either a comment about noise in shadows or if a camera sells.

The most beautiful iconic photographs in the world had noise. (See Fabian Baron's art direction on a google lookup) and who the hell cares what cameras sells to who?

If nikon sells 40 trillion df's and Phase sells one back a year I don't give a s__t and since only the dealers make money from this stuff, why should any of us care, except Bernard who wants to make sure his yellow and black nikon tattoo is still relevant and Ronald who probably is dusting off a commodore computer to go with his first generation monochrome digital camera.

The Sony, let's face it . . . its cheap.  Not in film camera terms, but in digital terms, it's cheap.  If it had a red dot on it and sold for $7,400 people would hit the roof screaming about dentists and investment bankers, but since it costs less than than the viewfinder for a RED, people want it because . . . it's cheap. (see note)

I don't know if the size has that much to do with it.

IMO

BC

note:
It's only cheap if you use your canon glass.  Crazy thing is for me to buy into a new system and use it professionally will cost me more with lenses, adapters, L brackets and right angle grips than if I bought a Leica S2 and used my Contax lenses.

Title: Re: A7r first impression ( a personal reflection )
Post by: ErikKaffehr on December 10, 2013, 02:13:00 pm
Hi,

I would be interested in the A7r, but…

I need lenses. I could use it with my Sony Alpha lenses,but that would be big lenses with a small camera.

Will the E mount lenses be good?

I am not sure I would buy a camera without OLP filter.

I invested in MFD recently, so funds are not available.

Best regards
Erik
Title: Re: A7r first impression
Post by: CptZar on December 10, 2013, 04:30:51 pm
Lloyd Chambers is presently reviewing the Zeiss 35/f2.8. The 55/1.8 review is coming later. There are things he doesn't like, but a lot of things he likes, too. I personally think, that the 24-70/f4 and the 70-200/f4 together with a fast prime will be a very nice and portable solution. Maybe a UW prime after that.

I have an order for the Zeiss Otus 55 which should arrive by mid december. I think though I will pass on it. The lens is huge, and walking around with a 1000g lens on a 20mm adapter seams somehow a little awkward. You really have to be careful not to hit anything and there is a lot of stress on the mount. Definitely OK for a Studio but, outside no. So I was thinking of the Zeiss Sonnar 50/f1.5 or the Sony Zeiss 50/f1.8.
There is a review of the 55/f1.8 at

http://slrgear.com/reviews/showproduct.php/product/1656

But why not use, Sony Alpha lenses? AF is as fast as on the Alphas with the new adapter and beside that possibilities are endless, though the more I play with the cam, the more I see how much easier it is to walk around with light  equipment.
Title: Re: A7r first impression
Post by: hubell on December 10, 2013, 09:30:13 pm
There's no doubt that a weight saving of around 400 gm, comparing a D800E body with an A7r body with metabones adapter attached, is worth something when holding the camera in hand, or walking with camera strapped around one's neck.

However, a weight saving of 400 gm in relation to the total weight of all the photographic gear one might be carrying whilst trekking in the countryside, including lenses, spare batteries, charger, and tripod etc, might be trivial.

I would rather get that saving of 400 gm by losing a bit of fat from around my tummy. That would be far cheaper than buying a new camera, and better for my health too.  ;D

Forget numbers and percentages. Have you actually held an A7R with the new 35mm sony/ Zeiss lens in your hands? I thought a mistake had been made when the packages were delivered to my home. I thought the boxes were empty. Seriously.
It is a wonder that a package of that size has been outfitted with a state of the art FF sensor. If the IQ holds up to the standard set by the 36mp sensor in the D800, the A7R will prove to be a game changer for many. It will go to places that a D800 and a bunch of lenses would never go.
Title: A7r kit size and weight advantage: with one small prime vs a bunch of lenses
Post by: BJL on December 10, 2013, 09:51:34 pm
Have you actually held an A7R with the new 35mm sony/ Zeiss lens in your hands?
That usage, with a small wide to normal prime lens, is where the savings in body size and weight make most sense, which is why the recent "big-sensor compacts" tend to have such lenses. But
... [the A7R] will go to places that a D800 and a bunch of lenses would never go.
as soon as you go from that one lens kit to a bunch of lenses including ones offering significant telephoto reach, the body weight reduction becomes far less important. That is, I suspect, the gear scenario that Ray is thinking of.
Title: Re: A7r first impression
Post by: peterottaway on December 10, 2013, 10:41:30 pm
It depends on what comes next from Sony, (Sony) Carl Zeiss and Carl Zeiss proper. For me the A7r with the 24 - 70, 70 - 200 and a 18 prime would be an ideal traveling kit. I have plenty of Minolta and Sony A mount lenses for more specialist photography that could be brought along if conditions require them and a vehicle is available.

Just like I have an A77 if I want to shoot sports etc now and again, plus the A850 in case of a backup is required. Of course all of this means I was half way convinced before handling the camera, I don't need to do the same deep introspection that a long time Canon or Nikon user may need.

 I kept many of my old manual focus lenses as I may be reasonably ruthless in discarding cameras that I no longer need, I am a mug for keeping my glass. And what have I got - a rather large collection of primes including a 200 / 4 and a 300 / 4 plus a 28 - 85 and a 50 - 135 zoom. No extremely heavy or long zooms that marketing departments would have you believe that you not only need but that you aren't complete as a person let alone a photographer without.
Title: Re: A7r first impression
Post by: Ray on December 10, 2013, 11:05:59 pm
On this forum I think every third post is either a comment about noise in shadows or if a camera sells.

The most beautiful iconic photographs in the world had noise. (See Fabian Baron's art direction on a google lookup) and who the hell cares what cameras sells to who?

Issue such as noise, DR and high-ISO performance have always been hot topics. One of the main advantages of Medium Format film was not just the additional resolution it provided, compared with 35mm film, but the smoother tones and less obvious grain.

If one wants to make an art feature out of exaggerated grain/noise, blurred motion, blocked, black shadows and so on, that's fine, but most photographers (apart from phone-camera users), probably prefer clean shadows and mid-tones combined with high resolution. I certainly do.

I'm very reluctant in general to buy new gear just because it's cheap and appears to have one or two small advantages compared with what I already have. The idea of one step forward and 3 steps backward does not appeal to me.

Not only does the A7r appear to have lower DR than the D800 at ISO 200 (which in itself is not necessarily a deal-breaker), but we also have the problem of reduced lens functionality when the camera is used with adapters. For example, I was very surprised that the A7r does not have sensor-based image stabilization. I happen to think that image stabilization is one of the great innovations in photography, as is auto-focus and auto-exposure. Why would anyone want to throw away any one of those great features for the sake of a 400 gm weight saving?

Maybe we should start a new thread titled, "How to make sensible purchasing decisions."  ;D

Title: Re: A7r first impression
Post by: CptZar on December 11, 2013, 12:08:08 am


Not only does the A7r appear to have lower DR than the D800 at ISO 200 (which in itself is not necessarily a deal-breaker),



Lloyd Chambers doesn't find such behavior in his ISO series. He writes the A7r is on par with the D800. ISO 100 and 200 are hard to distinguish. He calls it a state of the art performance.
Title: Re: A7r first impression
Post by: aaykay on December 11, 2013, 03:17:15 am
Of course I don't prefer unnecessary bulk and weight. I'm not silly. ;)  If I didn't already use a couple of Nikon bodies and a few Nikkor lenses, I'd probably consider the A7r, with Metabones adapter to suit my Canon lenses, a worthwhile upgrade.

Even if the camera wasn't lighter and less bulky, the higher resolution and better DR at low ISOs would make it a worthwhile upgrade to replace any current Canon DSLR, provided the adapter provides full functionality.

However, in my situation, the only advantage I can see is a 400 gm reduction in weight which is offset by the disadvantage of an electronic viewfinder (I don't like them), and a lower DR at the frequently used ISO of 200. I also doubt that there's an adapter that provides full functionality with Nikkor lenses, but I could be wrong.

Agreed, that in your particular situation, where you want to use the A7r with your existing gear, it does not make sense. 

However, from a clean slate perspective, I would have absolutely no trouble in eschewing the big/bulky  DSLR stuff and going with an A7r and the relatively petite lenses that come natively with the mount.
Title: Re: A7r first impression
Post by: Ray on December 11, 2013, 09:33:33 am
Lloyd Chambers doesn't find such behavior in his ISO series. He writes the A7r is on par with the D800. ISO 100 and 200 are hard to distinguish. He calls it a state of the art performance.

I'm not a subscriber to Lloyd's site. Could you be a bit clearer. Do you mean that Lloyd has compared the  DR of the A7r with that of the D800 at ISO 200 and found no difference? There should be no noticeable image quality differences between the two cameras at all other ISOs.

At all ISOs, including ISO 200,  the Color Sensitivity, SNR at 18%, and Tonal Range should be approximately the same for both cameras. It's the DR at ISO 200 which is the anomaly.
Title: Re: A7r first impression
Post by: Manoli on December 11, 2013, 09:51:04 am
I'm not a subscriber to Lloyd's site. Could you be a bit clearer. Do you mean that Lloyd has compared the  DR of the A7r with that of the D800 at ISO 200 and found no difference? There should be no noticeable image quality differences between the two cameras at all other ISOs.

At all ISOs, including ISO 200,  the Color Sensitivity, SNR at 18%, and Tonal Range should be approximately the same for both cameras. It's the DR at ISO 200 which is the anomaly.

If you consider what Iliah says in this thread,  http://www.luminous-landscape.com/forum/index.php?topic=84842.msg687161#msg687161 ,  I would think there would be a difference throughout ( not least due to 13-bit v true 14-bit). Whether or not we would 'see' that difference in print is another question ..
Title: A7r: 13-bit vs 14-bit irrelevant at higher ISO speeds
Post by: BJL on December 11, 2013, 10:15:31 am
… I would think there would be a difference throughout ( not least due to 13-bit v true 14-bit). Whether or not we would 'see' that difference in print is another question ..
Once amplified above about ISO 200 or 400, the noise floor of the sensor signal has been raised comfortably above the noise floor of the 13-bit ADC, so I would expect little or no difference at higher ISO speeds. At least this is so if the higher ISO speeds are implemented with sufficient analog gain before ADC rather than just bit shifting.  I think that this is what testing indicates, but if I am wrong, I am sure that someone like Iliah can correct me.

This 13 vs 14 comparison can drift into the realm of the spurious claims that 16-bit ADC gives an IQ advantage over 14-bit ADC in an MF back that has less than 13 stops of engineering DR (and as with all recent sensors, an even smaller photographically useful range.)

Combined with my previous arguments for skepticism about that "outlier" DxO DR measurement at ISO 200, the observations of Lloyd Chambers strengthen case that it is either a measurement error or sample variation. If the latter, this could be an illustration of the hazard of testing only one camera of each model, in contrast to what Roger Cicala at Lens Rentals can offer with his testing of multiple lenses.
Title: Re: A7r first impression
Post by: ErikKaffehr on December 11, 2013, 12:48:06 pm
Hi,

12, 13 or 14 bits just affects the blacks. Sony uses some compression for the lighter part of the image, but I am quite sure that shot noise, that is natural variation of light arriving at the sensels absolutely dominates over the quantisation error introduced by mapping algorithm.

Best regards
Erik



If you consider what Iliah says in this thread,  http://www.luminous-landscape.com/forum/index.php?topic=84842.msg687161#msg687161 ,  I would think there would be a difference throughout ( not least due to 13-bit v true 14-bit). Whether or not we would 'see' that difference in print is another question ..
Title: Re: A7r first impression
Post by: Telecaster on December 11, 2013, 03:27:39 pm
I kept many of my old manual focus lenses as I may be reasonably ruthless in discarding cameras that I no longer need, I am a mug for keeping my glass. And what have I got - a rather large collection of primes including a 200 / 4 and a 300 / 4 plus a 28 - 85 and a 50 - 135 zoom. No extremely heavy or long zooms that marketing departments would have you believe that you not only need but that you aren't complete as a person let alone a photographer without.

Hehe, that's my approach too. An exception was Canon EF lenses...sold most of 'em (when I gave up on the cameras) due to their relatively non-adaptable nature. At the time anyway...no A7(r) or other mirrorless mounts in 2006. Kinda wish I'd kept the 100/2, though, as it made a lovely people-pic lens. My single Big Gun is a Nikkor 400/3.5, which I bought mainly for adapted telescope use...which I haven't gotten around to yet! Makes pretty Moon pics on micro Four-Thirds cameras, though, and with the 2x TC I can just resolve Saturn's coarse ring structure.

I went through a bout of long lens fever c. 2007/8, and ended up mostly with photos where I let the lenses tell me what to do rather than vice versa. It got so bad that I'd try to use a moderate wide lens, say 35mm, and it would look to me in the finder like a fisheye. Ugh... Of course there are people who make the big glass sing. I'm just not one of 'em.

-Dave-
Title: Re: A7r first impression
Post by: CptZar on December 11, 2013, 04:12:21 pm
I'm not a subscriber to Lloyd's site. Could you be a bit clearer. Do you mean that Lloyd has compared the  DR of the A7r with that of the D800 at ISO 200 and found no difference? There should be no noticeable image quality differences between the two cameras at all other ISOs.

At all ISOs, including ISO 200,  the Color Sensitivity, SNR at 18%, and Tonal Range should be approximately the same for both cameras. It's the DR at ISO 200 which is the anomaly.

I quote:

"As in the blue crop, ISO 200 is hard to distinguish from ISO 100. Which in practice is highly useful for that extra shutter speed. And it might well be that the Sony 8-bit compression makes ISO 200 truly as good as ISO 100 anyway (low level noise compressed away).

Most striking perhaps is the absence of any significant pattern or streaking noise even at ISO 25600 and even when the individual color channels are examined (including the red channel). In this regard the A7R *blows away* all Canon sensors of any resolution, and appears to be no less good than the Nikon D800E. In context, this is a true state of the art performance and speaks highly of sensor quality in the real world."

By the way...
If the DR of ISO 200 was smaller than at ISO 100 shouldn't the RAW Histogram in RAW Digger reflect that?

Best regards

Jan
Title: Re: A7r first impression
Post by: Ray on December 11, 2013, 07:34:25 pm
I quote:

"As in the blue crop, ISO 200 is hard to distinguish from ISO 100. Which in practice is highly useful for that extra shutter speed. And it might well be that the Sony 8-bit compression makes ISO 200 truly as good as ISO 100 anyway (low level noise compressed away).

Most striking perhaps is the absence of any significant pattern or streaking noise even at ISO 25600 and even when the individual color channels are examined (including the red channel). In this regard the A7R *blows away* all Canon sensors of any resolution, and appears to be no less good than the Nikon D800E. In context, this is a true state of the art performance and speaks highly of sensor quality in the real world."

By the way...
If the DR of ISO 200 was smaller than at ISO 100 shouldn't the RAW Histogram in RAW Digger reflect that?

Best regards

Jan


Without a clear description of Lloyd's methodology and the type of images he used for comparison purposes, I'm still none the wiser.

If both cameras at ISO 200 have similar SNR, tonal range and color sensitivity, as well as identical resolution, one would not expect to notice any significant difference in most images compared.
A difference in DR of 0.71 EV would only be noticeable in situations where ideally one needed to bracket exposures to create an HDR image, but was unable to do so for whatever reason, such as lack of a tripod and/or lack of time due to a changing scene.

In such circumstances a choice of ISO 200 might be preferred in order to get an adequate shutter speed for a hand-held shot, in conjunction with a good DoF at a small aperture. If one were using the A7r with an adapter, the circumstances where one would need to use ISO 200 would occur more frequently because one wouldn't have the benefit of image stabilization, even if the attached lens did have that feature.

Now it is certainly possible that DXO have either made a mistake during their testing, or they have accurately tested a faulty, or below-average camera body.

It would be interesting if someone could take the trouble to do a specific DR test at ISO 200, comparing shots of a very contrasty scene, such as the view out of a window on a bright day, exposing for the sky. The quality of the detail in the relatively poorly lit room would be ideal to reveal any DR difference of 0.71 EV, if such a difference exists.
Title: Re: A7r first impression
Post by: JimVehe on December 11, 2013, 08:24:14 pm
My experience agrees with Michael. 35 f2 ASPH, 50 f2, 90 f2 APO all work fine.  I have seen some color casts on images with the 18 f3.8 Super Elmar but not all. What diffusion filter are people using with Adobe's DNG Flat field plug-in?
Title: Re: A7r first impression
Post by: johnvr on December 12, 2013, 01:24:48 pm
Question for people using the A7r, do you notice jagged edges in your EVF, for example when viewing text or branches against a light background? I do, and I wonder if it's normal or a fault of my camera.

Thanks
Title: Re: A7r first impression
Post by: jrp on December 12, 2013, 02:13:56 pm
There is a series of tests here: http://blog.kasson.com/?p=3877 (http://blog.kasson.com/?p=3877) (a series of blog posts)

Fixing with the various plug-ins seems problematic as you need to know which aperture you used.
Title: Re: A7r first impression
Post by: chrisgibbs on December 13, 2013, 01:53:10 pm
>You push a totally dark image all the way up, and there is no color bending. It stays absolutely clean. Impossible on the 5DIII which will then always give you color artifacts.<

Good to know, also one of the big plusses of the Nikon D800 sensor over our 5D3's! ~Chris
Title: Re: A7r first impression
Post by: photodan on December 13, 2013, 06:00:17 pm
Quote
Question for people using the A7r, do you notice jagged edges in your EVF, for example when viewing text or branches against a light background? I do, and I wonder if it's normal or a fault of my camera.

I have noticed the same thing as have, especially on branches & leaves on trees at a distance.