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Author Topic: Schneider 43mm  (Read 12082 times)

Alan W George

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Re: Schneider 43mm
« Reply #20 on: January 26, 2011, 12:35:02 am »

Just spent two days shooting and used the new 43 with the Rm3d on 80% of the shots. Have I mentioned that 45mm is my favorite focal length on the P65+?

The new Schneider is nothing short of stellar!  It has excellent depth of field and sharpness that allowed 20mm of movement with ease. I'll get some samples up this evening. This lens was so worth the wait.

CB

I have the Schneider 47mm (I'm not alone in this:).  Not being familiar with the 43mm (not much info on the web that I could find), I was wondering what the 43 has over the 47? Besides a slightly shorter focal length.  The 47 is a nice little piece of glass. I especially appreciate the 113mm image circle.  Although the light fall off is something to wish was better, but manageable.
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jotloob

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Re: Schneider 43mm
« Reply #21 on: January 26, 2011, 03:35:14 am »

You must take a white card (LCC) calibration from every position of the stitch.

You should make one for every bracket at every stitch position to be clear.

Some people try and make a set of LCCs in advance at various points of rise/fall/ shift for each lens.  I tried this but found that there was also variation for the lighting condition.

The LCC has no effect on sharpness, however, with wider lenses like the 35mm and the 24mm where fall of is huge, centre filters should be used otherwise the LCC will rip the edges apart and create noise as it adjust the falloff to match the rest of the image.

m


Thanks Murray

That is what I suspected , but wanted to circumvent . I am using an EXPO disc .
I am still wondering , if I have to take an LCC shot for each stich position , when using a longer focal length .
I have the RODENSTOCK DIGARON-W 90mm , but have not done any stitching with it yet .
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Jürgen

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Re: Schneider 43mm
« Reply #22 on: January 26, 2011, 04:06:54 am »

I have the Schneider 47mm (I'm not alone in this:).  Not being familiar with the 43mm (not much info on the web that I could find), I was wondering what the 43 has over the 47? Besides a slightly shorter focal length.  The 47 is a nice little piece of glass. I especially appreciate the 113mm image circle.  Although the light fall off is something to wish was better, but manageable.
the 43XL...
- has a slightly higher contrast (and is also slightly sharper... negligible, though)
- it's usable at f8 all over the image circle (the 47XL has to be stopped down to f11 with large movements)
- at f11 and f16 both are more or less the same
- light falloff is also more or less the same (~2 stops)

Schneider will provide a glass centerfilter (no regular series but by order); should be available in April/May.

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Murray Fredericks

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Re: Schneider 43mm
« Reply #23 on: January 26, 2011, 07:40:42 am »

Hi Jurgen,

the longer the lens, the less noticeable the colour variations and falloff (as you know)...but, I still do LCCs for the 90mm ,however, not with the 180mm...

Cheers

M
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yaya

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Re: Schneider 43mm
« Reply #24 on: January 27, 2011, 09:24:31 pm »

It's a nice do-it-all lens especially with hi-res backs

Aptus-II 10R and Rm2D:



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Yair Shahar | Product Manager | Phase One - Cultural Heritage
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JdeV

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Re: Schneider 43mm
« Reply #25 on: January 28, 2011, 12:55:54 pm »

Maybe I'm misreading the MTF charts but, judging by those, the 43mm XL looks rather disappointing. (They can be found on the Alpa site).

Compared with the 47mm it looks like it has much worse fall-off in sharpness and illumination.
On the plus side, it seems to be very slightly sharper in the centre than the 47mm and have significantly less distortion than the Rodenstock HR W 40mm.

The question then naturally arises of whether one wouldn't be better off just shooting with the 47mm and doing a touch of stitching when a bit extra was needed.
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yaya

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Re: Schneider 43mm
« Reply #26 on: January 28, 2011, 01:20:09 pm »

Maybe I'm misreading the MTF charts but, judging by those, the 43mm XL looks rather disappointing. (They can be found on the Alpa site).

Compared with the 47mm it looks like it has much worse fall-off in sharpness and illumination.
On the plus side, it seems to be very slightly sharper in the centre than the 47mm and have significantly less distortion than the Rodenstock HR W 40mm.

The question then naturally arises of whether one wouldn't be better off just shooting with the 47mm and doing a touch of stitching when a bit extra was needed.

I've never compared the 43 to the 47 head-to-head but with the 43 I can comfortably shoot wide open or at f8 whereas with the 47 you have to follow the "safe f11" rule and this can sometimes make a big difference especially when pushing long-ish exposures etc.

my 2¢ worth

Yair
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gazwas

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Re: Schneider 43mm
« Reply #27 on: March 01, 2011, 10:42:49 am »

Has anyone using the 43XL (or 47XL) run into the issue Phase One highlight in their knoledge base article below?

http://www.phaseone.com/en/search/article.aspx?articleid=1221&languageid=1

The flange focal distance of the Rodenstock is a lot greater than the Schneider (69.5mm vs 48.9mm) which would probably account for the issues highlighted above and would suggest the Rodenstock to be a better option with the latest gen digi backs.

However, the distortion and much higher price of the Rodenstock makes the Schneider 43XL a much better proposition if it works.

Your comments would be appreciated  :)
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skimasks

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Re: Schneider 43mm
« Reply #28 on: March 01, 2011, 04:35:26 pm »

I just started shooting my 47mm wide open and I'm pretty happy with the results. Are most copies soft wide open?

unedited besides white balance. 100 percent unsharpened crop on the right.
http://i89.photobucket.com/albums/k225/skimasks/teatime1.jpg
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