Luminous Landscape Forum
Equipment & Techniques => Cameras, Lenses and Shooting gear => Topic started by: torger on October 16, 2013, 06:55:03 am
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Is there a Canon EF-mount adapter for the Sony A7R? It would be cool to finally be able to use for example the Canon TS-E 24 II with a state of the art 36 megapixel sensor.
Edit: there seemingly is one, from metabones. Would be nice to see some test shots...
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But this is for the crop sensor of the NEX 7. Does it also work with the a7r?
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There are several, although Metabones led the charge. Others are typically cheaper and most sell on ebay with a simple search.
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But this is for the crop sensor of the NEX 7. Does it also work with the a7r?
Yes, in the Camerstore TV video he shows the Metabones working with the EF 17-40 on the A7r
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He does show the MetaBones adapter working in the CameraStore Video, but he doesn't mention anything about the crop factor at all. Is the crop factor something to be concerned about? No one seems to know for certain :(
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What crop factor?
The Metabones adaptor is full frame (the mkII I think), the a7 is full frame.
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The MetaBones EOS to NEX adapter is designed to fit the APS-C E Mount. So I was curious if the adapter filtered the full frame lens to be captured by an APS-C sensor.
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Metabones Smart Adapter I (with a small rectangular opening) and Smart Adapter II (with a round opening) covers only the APS-C circle and is NOT compatible with full frame NEX camera bodies. Smart Adapter III (with a large rectangular opening) is the one you want.
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The Mark III is exactly what I got! Thanks a ton guys!
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Allright, this got me very interested.
Does anyone know if using Canon TS-E 24mm L II or TS-E 17mm lenses on a7r would cause any mechanical wignetting while using shift movement?
I see that FE-mount has quite small diameter vs. EOS mount while being full frame. Also Metabones adapter seem to have some stuff (like contacts) inside the adapter which might cause a problem for this kind of use.
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Allright, this got me very interested.
Does anyone know if using Canon TS-E 24mm L II or TS-E 17mm lenses on a7r would cause any mechanical wignetting while using shift movement?
Hi,
A similar question could be asked for the EF 85mm f/1.2 II. It has a huge exit pupil, with a rear lens element diameter of approx. 45mm, and that is already shaded by the mirror of the EOS-1Ds Mark III when used wide open (as evidenced by the clipped OOF background blur 'circles').
Cheers,
Bart
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The 24mm version seem to have quite small exit pupil and not too close to lens mount. I usually use small apertures f8-f11 with this lens, so luckily it would help to overcome wignetting issues.
Also aperture can be set beforehand using EOS body, so use of automatic adapter (with contacts) would not be required. To have correct EXIF info would be nice though.
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Allright, this got me very interested.
Does anyone know if using Canon TS-E 24mm L II or TS-E 17mm lenses on a7r would cause any mechanical wignetting while using shift movement?
....
I emailed Metabones asking them this. I have the 17 (not 24 but might spring for one if usable).
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I emailed Metabones asking them this. I have the 17 (not 24 but might spring for one if usable).
Metabones replied but will only say that the lenses have not been tested.
I emailed Brian Caldwell who designed the Speedbooster. Not that the Speedbooster is relevant to this, but I thought he may well be familiar enough with the geometries in the SAIII to give a good idea. His reply;
"It seems to me that the E-mount is a really poor choice for a full-frame mirrorless due to the extremely small throat diameter. Whether this has a visible vignetting impact on lenses with large exit pupil distances and shift lenses remains to be seen. I think you might see some abrupt corner falloff with the 17/24 shifted to their maximum values, especially if you shift along the short side of the frame. I don't think the Metabones glassless adapter would have any impact on this - its just inherent in the geometry of the E-mount.
However, we won't know for sure until somebody does an actual test."
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mcbroomf
Thanks for taking the first steps to research along this path.
That response is not exactly promising but not entirely discouraging.
I will still hold out some hope until it is proven that it won't work with the 17 and 24 TS-Es.
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I'm no designer but this was the first question I had when I first saw the real photos. The FF E-Mount camera seems to be an improvisation. I won't buy the A7R till someone fully test it with Canon TSEII glass. :( Damn it, I'll have to wait till Haley is back for Canon to come up with a Nikon D800 answer. >:(
Eduardo
P.S. The EOS bigger throat seems to be a real advantage that Canon has over Nikon at the time of designing lenses.
Metabones replied but will only say that the lenses have not been tested.
I emailed Brian Caldwell who designed the Speedbooster. Not that the Speedbooster is relevant to this, but I thought he may well be familiar enough with the geometries in the SAIII to give a good idea. His reply;
"It seems to me that the E-mount is a really poor choice for a full-frame mirrorless due to the extremely small throat diameter. Whether this has a visible vignetting impact on lenses with large exit pupil distances and shift lenses remains to be seen. I think you might see some abrupt corner falloff with the 17/24 shifted to their maximum values, especially if you shift along the short side of the frame. I don't think the Metabones glassless adapter would have any impact on this - its just inherent in the geometry of the E-mount.
However, we won't know for sure until somebody does an actual test."
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http://blog.nicgranleese.com/2013/10/24/sony-a7r-review-for-architectural-photographers
"The Canon 24mm TSE ii physically / shifts fine with the A7r. The images above showing full shift up and down are of the 24mm lens. You will have to watch where you place your tripod plate though. I had to put mine on backwards. As for the electronics of the lens like aperture, that all appeared to work well and because the lens is manual focus that wasn’t an issue. For lenses with autofocus though you may have some issues with focus speed.
As for vignetting, the 17mm had obvious corner shadows, but the 24mm looked ok at a glance. More tests needed there though.
I just checked the meta data on the jpeg from the A7r and info like aperture, and focal length have been saved correctly, but the model of the lens hasn’t shown up. So apart from that it looks like the Canon 24 and 17 TSE lenses are going to work just fine. I can’t comment on the image quality yet as I wasn’t able to take enough photos, but I have asked Sony if I can borrow the A7r for a full shoot and a more in depth review."
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Hi A7r. The answer you quoted was kindly directed to me. This was my question to Nick:
"Exciting article but a little of an anticlimax. Me and and a lot of Canon users are desperately to know if Canon TSEII work with the Sony A7r. You mentioned the 17Ts to vignette with full movements. . But what about the 24TS? Was it fully usable with the Metabones adapter on the A7r? Thanks so much."
I'm "that" Eduardo. But I still wait for a full in-depth review before I get excited about it.
Greetings
Eduardo
http://blog.nicgranleese.com/2013/10/24/sony-a7r-review-for-architectural-photographers
"The Canon 24mm TSE ii physically / shifts fine with the A7r. The images above showing full shift up and down are of the 24mm lens. You will have to watch where you place your tripod plate though. I had to put mine on backwards. As for the electronics of the lens like aperture, that all appeared to work well and because the lens is manual focus that wasn’t an issue. For lenses with autofocus though you may have some issues with focus speed.
As for vignetting, the 17mm had obvious corner shadows, but the 24mm looked ok at a glance. More tests needed there though.
I just checked the meta data on the jpeg from the A7r and info like aperture, and focal length have been saved correctly, but the model of the lens hasn’t shown up. So apart from that it looks like the Canon 24 and 17 TSE lenses are going to work just fine. I can’t comment on the image quality yet as I wasn’t able to take enough photos, but I have asked Sony if I can borrow the A7r for a full shoot and a more in depth review."
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Hey Eduardo,
I agree Eduardo, it's still hard to know for sure, without an in-depth review. Just have to wait and see. I have 2-3 weeks before my lens is posted from hong kong, so I have a bit of time to make sure it will work fine. The small E mount diameter is a worry.
Cheers
Chris
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Well, FE-mount diameter is still larger than Nikon F-mount by 2mm and about same than OM-mount. Latter mounts have also much longer flange distance.
I think that retrofocal design of 24mm TS-E II would might help with this issue. Lens exit pupil is not very close to lens mount due to the shift mechanism.
Very interesting to see how it turns out and if a "plain" adapter without contacts would be better for this.
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Andy, thanks for this info. I would have never noticed this as I sold all Nikon 21 years ago. But now that you pointed this, I remember that I always find the Nikon F-mount curiously small when comparing to Canon EF-mount. I (we) never noticed because the film plane is deeply recessed in the case of Nikon slr's film or digital. In the case of Sony E-mount the sensor rests very close to the camera throat.
For now, we know that the 17TSE won't be able to work with the A7r when shifted.
Eduardo
Well, FE-mount diameter is still larger than Nikon F-mount by 2mm and about same than OM-mount. Latter mounts have also much longer flange distance.
I think that retrofocal design of 24mm TS-E II would might help with this issue. Lens exit pupil is not very close to lens mount due to the shift mechanism.
Very interesting to see how it turns out and if a "plain" adapter without contacts would be better for this.
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Just test it today with A7R and 17tse with metabones adapter mkIII.
rest assured,there is NO corner cut with 17tse fully shifted vertically or horizontally
Can't insert the SD card but i captured some image from the screen for you :)
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looks like a handy system, be interested to see how the lenses fare with smaller pixels than available canon offerings.
shame it doesn't tether.
EDIT: evidently it does but no idea what the software is like and if you can do a watched folder in C1
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Wow, wow, wow! One for each screen photo.
Thanks a lot for sharing.
It looks I'm bound for a Sony xmas!
Eduardo
Just test it today with A7R and 17tse with metabones adapter mkIII.
rest assured,there is NO corner cut with 17tse fully shifted vertically or horizontally
Can't insert the SD card but i captured some image from the screen for you :)
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Thanks for sharing screenshots. This combo looks magnificent so far :D
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looks like a handy system, be interested to see how the lenses fare with smaller pixels than available canon offerings.
Both TS-E 17mm and 24mm L II have very high IQ so I don't think that will be something to worry about. a7r's 2 stops wider DR (vs. 5D mkIII) is more interesting for me.
The 24mm version is sharper though and one can use filters more easily with it. It is just not wide enough sometimes.
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Yewww! I can't wait for my A7R and 24mm TS-E II to arrive :D Thanks for posting the images keng3d.
Cheers
Chris
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I share your screaming enthusiasm :D Best news of the year by far. For Canon TSE lovers at least.
Do you feel the pain Canon? I hope you do. Funny thing, Sony may well help Canon sell more lenses.
Eduardo
Yewww! I can't wait for my A7R and 24mm TS-E II to arrive :D Thanks for posting the images keng3d.
Cheers
Chris
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I would urge a cautious enthusiasm.
I believe that we are basing our hopes on only two very cursory tests performed by people with very limited access to the cameras. In fact, the only two reports we have so far appear to be contradictory on the point of vignetting with the 17TS-E, in't that correct?
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Don't be a party pooper. :D
Seriously, you are correct. I usually tend to go by the last impression.
Eduardo
I would urge a cautious enthusiasm.
I believe that we are basing our hopes on only two very cursory tests performed by people with very limited access to the cameras. In fact, the only two reports we have so far appear to be contradictory on the point of vignetting with the 17TS-E, in't that correct?
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Ok Eduardo, ok...
Perhaps now there's a bit more reason for hope.
Have you seen this Dutch website's tests (http://www.pf.nl/19555/hands-on-sony-alpha-7r-metabones-adapter-eos-lenzen/)?
Here's a relevant excerpt:
We wondered if there would shield the image created by the adapter or the bayonet and how the sensor would react to the image at an oblique would fall on the sensor. The results of the tests are convincing. The Alpha 7R has no problem with the Canon 24mm and 17mm TSE TSE. The image remains sharp right into the corners and vignetting is the same as the EOS 5D a little at full adjustment.
I remain cautiously (more) hopeful. ;-)
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Hi,
The beam angle depends only on lens and not on the camera. The offset microlenses may a bit helpful light fallow in the corners. Raw conversion software may handle vignetting with a good lens profile and adequate EXIF data. These may be an area for hacking :-)
There is a risk that the bayonet opening may cut off part of the image, but this seems not to be the case.
Best regards
Erik
Ok Eduardo, ok...
Perhaps now there's a bit more reason for hope.
Have you seen this Dutch website's tests (http://www.pf.nl/19555/hands-on-sony-alpha-7r-metabones-adapter-eos-lenzen/)?
Here's a relevant excerpt:
I remain cautiously (more) hopeful. ;-)
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Thanks Phil, I just read it. Things are looking good. Let's keep faith
Eduardo
Ok Eduardo, ok...
Perhaps now there's a bit more reason for hope.
Have you seen this Dutch website's tests (http://www.pf.nl/19555/hands-on-sony-alpha-7r-metabones-adapter-eos-lenzen/)?
Here's a relevant excerpt:
I remain cautiously (more) hopeful. ;-)
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Edouardo,
So the a7r has been out for a while now and I am guessing that your questions regarding it's compatibility with Canon TS-E lenses have been answered.
If not, let me know. I'm currently testing the system.
Cheers,
Phil
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Has anyone tested the Sigma 12-24 with the version III adapter and the a7r? This is my workhorse lens and without it a a7r would be useless.
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Has anyone tested the Sigma 12-24 with the version III adapter and the a7r? This is my workhorse lens and without it a a7r would be useless.
Yes, works fine in Manual Focus but no auto focus.
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Yes, works fine in Manual Focus but no auto focus.
THANKS! I always manual focus anyways,
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There is also this new option http://www.rjcamera.com/ocart/index.php?route=product/product&path=20_63&product_id=81
Note sure how is compares to metabones though.
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I'm dying for someone to test this adapter with Canon TS glass. Fred Miranda posted he ordered one. I keep watching.
Eduardo
There is also this new option http://www.rjcamera.com/ocart/index.php?route=product/product&path=20_63&product_id=81
Note sure how is compares to metabones though.
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i use the metabones adapter together with the canon 17 and 24 tse lenses. it works perfect without any flaw. more problematic is the use of the nikon shift lenses. i dont bring them to work. i have a fotodiox and a novoflex adapter, both dont give energy to the lens and the ts-e lenses cant stop down without getting energy from the body, although they have focus rings. does anybody know an adapter which connects the nikons electronically? i would like to use this nikon 45tse cause its much better than the canon counterpart ...
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According to Fred Miranda over at FM:
"Yes, my R.J. adapter copy shows more CA, especially in the corners. I would stick with Metabones."
"Images from the Sony A7R + Metabones have amazing center resolution, noticeably higher than Canon's with the same lens but the corners do not show the same improvement...I just ordered another Metabones to make sure, but it looks like Roger [Ciccala at Lens' Rentals] was right when he wrote there is no free lunch when adapting our lenses."
http://www.fredmiranda.com/forum/topic/1247661/90
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I'm wondering how an adaptor with no optical element causes chromatic aberrations?
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+1
I'm wondering how an adaptor with no optical element causes chromatic aberrations?