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Wides for A7R

scho

scho

Well-known member
I did some whiteboard shots with some of my available wide lenses on the A7R. As expected the 28 biogon did poorly in terms of corner vignetting, smearing, and color shift. I didn't even bother with the 21 biogon which I know is the worst in corner performance. Best 28 was the CV f/1.9 Ultron followed closely by the Contax distagon f/2.8 and Canon FD f/2 (not shown here). The 24mm Canon FD f/2 is also a good performer on the A7R.

All at f/5.6:
21mm f/1.8 Ultron


24mm Canon FD f/2


28mm f/1.9 Ultron


28mm f/2.8 Contax G Biogon


35mm f/2 Contax G Planar


35mm f/2.8 Sony FE Sonnar


40mm f/2 Minolta Rokkor-M


Edit: Just received the Rokinon 14mm (E mount) and added another white card shot and quick test snap. Very little CA, vignetting, and color shift. Distortion for sure, but I need to find the profile I used before for this lens with the D800e.

Rokinon T3.1 14mm


Sample (f/8)
 
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V

Vivek

Guest
Thank you, Carl! :)

I will shoot some skies with the M Rokkor 28/2.8 and post it here. It is fabulous for me on the A7R.
 
scho

scho

Well-known member
Vivek said:
Thank you, Carl! :)

I will shoot some skies with the M Rokkor 28/2.8 and post it here. It is fabulous for me on the A7R.
Click to expand...
Yes, please do. This lens is a little jewel. Perfect for the A7R. I haven't been out shooting much lately because of the bad weather, but I"ll also take some more shots with the M-Rokkor this weekend.
 
frozenbb

frozenbb

Member
Chris Barrett said:
What's everyone's preference on M Rokkor 40mm vs L Summicron-C 40mm?
Click to expand...
Unless you want the "status" which comes from having Leica (in which case the summicron-c isn't considered a real Leica anyway), go with the M-Rokkor 40. The optics and ergonomics are identical--assuming you get the older version of the Rokkor--and the Rokkor takes much friendlier 40.5mm, standard pitch, filters.
 
E

eightfold

New member
frozenbb said:
Unless you want the "status" which comes from having Leica (in which case the summicron-c isn't considered a real Leica anyway), go with the M-Rokkor 40. The optics and ergonomics are identical--assuming you get the older version of the Rokkor--and the Rokkor takes much friendlier 40.5mm, standard pitch, filters.
Click to expand...
I just ordered a mint CL version of this lens (by mistake). Everybody seems to be buying the CLE-version, and paying more for it. Have you people tried the CL version? Optically, there shouldn't be much difference besides multi-coating if I understand things correctly.

Is your sample, scho, from the CL or CLE?
 
frozenbb

frozenbb

Member
eightfold said:
I just ordered a mint CL version of this lens (by mistake). Everybody seems to be buying the CLE-version, and paying more for it. Have you people tried the CL version? Optically, there shouldn't be much difference besides multi-coating if I understand things correctly.

Is your sample, scho, from the CL or CLE?
Click to expand...
The CL version is fine. It's single coated but otherwise optically the same as the CLE version. These m-rokkor 40s are a great match for the a7/a7r when traveling light.
 
V

Vivek

Guest
I am assuming mine are CLE based on Steve Gandy's tip on where the serial numbers are located (Leica Minolta  CLE).

Yes, all 3 lenses have the useful 40.5mm filter threads and are simply superb on the A7R.

It is difficult for me to decide which one (28 or the 40) should be mounted on the cam and the other in my jacket pocket.
 
scho

scho

Well-known member
Vivek said:
I am assuming mine are CLE based on Steve Gandy's tip on where the serial numbers are located (Leica Minolta* CLE).

Yes, all 3 lenses have the useful 40.5mm filter threads and are simply superb on the A7R.

It is difficult for me to decide which one (28 or the 40) should be mounted on the cam and the other in my jacket pocket.
Click to expand...
I think that my copy is also CLE based on the serial number location on the lens barrel. There are currently 3 of these for sale on KEH and another 3 of the summicron versions.
 
A

algrove

Well-known member
For many here it would be very much appreciated if posters would mention the camera a7 or a7r (it seems some lenses are better for one model over the other), adapter used, if any,(they perform differently) and specifics about the shot like f stop, etc. Thanks.
 
Michiel Schierbeek

Michiel Schierbeek

Well-known member
Thanks for this. It looks quiet acceptable.
The second picture shows better the colourcast along the, mostly vertical, sides. Must be correctable in PP.

This was the first RF wideangle which came to my mind for the A7r.

What do you think so far? I would like to see a picture from a facade @ about 8 meters or so.
Only if you feel like it, of course.
 
scho

scho

Well-known member
Michiel Schierbeek said:
Thanks for this. It looks quiet acceptable.
The second picture shows better the colourcast along the, mostly vertical, sides. Must be correctable in PP.

This was the first RF wideangle which came to my mind for the A7r.

What do you think so far? I would like to see a picture from a facade @ about 8 meters or so.
Only if you feel like it, of course.
Click to expand...
The color shift is an easy fix in LR using the flat field plugin and a white target shot like the one I posted above. This is my favorite wide angle lens on the M9 and it is looking quite good now on the A7R as well.
 
L

lambert

New member
A7R + Voigtlander 21/1.8

Michiel Schierbeek said:
Thanks for this. It looks quiet acceptable.
The second picture shows better the colourcast along the, mostly vertical, sides. Must be correctable in PP.

This was the first RF wideangle which came to my mind for the A7r.

What do you think so far? I would like to see a picture from a facade @ about 8 meters or so.
Only if you feel like it, of course.
Click to expand...
I'm pretty impressed, so far. This lens has negligible distortion and is already quite sharp across the frame from around f4. There's a little colour shift, but unlike distortion and smearing, this is easily corrected. The size and weight feels about right to me at just over 800g for the combo.

Here's a facade from around 8m (same parameters as before):

https://dl.dropboxusercontent.com/u/49116332/A7R-CV21-ultron-5.jpg

I took this shot to assess sharpness/detail when focussed at infinity:

https://dl.dropboxusercontent.com/u/49116332/A7R-CV21-ultron-4.jpg
 
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Michiel Schierbeek

Michiel Schierbeek

Well-known member
Thanks Carl!

Lambert; great set of photo's to see the capabilitys of that lens. It really looks good and the perfect lens for a lot of what I do. Better investment for me then a 14mm (to wide).

I shot with it once on my GXR at the Photokina when it was released and was impressed as well. Especially the fact it had almost no distortion.

Thank you for the effort!
 
Ron Pfister

Ron Pfister

Member
Re: A7R + Voigtlander 21/1.8

lambert said:
I'm pretty impressed, so far. This lens has negligible distortion and is already quite sharp across the frame from around f4.
…snip...
I took this shot to assess sharpness/detail when focussed at infinity:

https://dl.dropboxusercontent.com/u/49116332/A7R-CV21-ultron-4.jpg
Click to expand...
Many thanks for posting the Ultron samples! I noticed blue, purple and grey haloes around the foliage and the branches in the top right corner of the last image. Are these JPEG compression artifacts, or do you see this in RAW, too?
 
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