Voigtländer Ultron 35/2 and Color-Skopar 21mm f/3.5

[lct]

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Short test on the M240. Compared to the CV 21/4, the new CV 21/3.5 shows much less magenta at corners.

[stephengv]

1 hour ago, lct said:

Short test on the M240. Compared to the CV 21/4, the new CV 21/3.5 shows much less magenta at corners.

 

Thank you for testing it for us, however there is no image ✌️ What do you mean "less" magenta? 

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[rsolomon]

Hi LCT

can you share any info on the mounting flange, is it six bit coded ? Can it be?  I know this may be determined  by the location of the mounting screws. 

 

thankyou

[lct]

Won't have time to take pics till this weekend sorry. Less magenta drift = less "red edge" or "italian flag" issues. Probably no more so than the Leica 21/3.4 asph at first glance but this remains to be tested. No six-bit coding. Same recessed part in the flange as other ZM and VM lenses currently so no screw in the way of the coding at all. Not sure any coding will be necessary. 

Edited February 4, 2019 by lct

[rsolomon]

Thanks! Looking forward to learning more!

[lct]

Just to reassure M users. CV 21/3.5 vs CV 21/4 on M240. No 6-bit coding, no red edge correction, no vignetting correction. F/5.6, focus at infinity. 

CV 21/3.5:

Welcome, dear visitor! As registered member you'd see an image here…

Simply register for free here – We are always happy to welcome new members!

 

CV 21/4:

 

[pedaes]

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Thanks for posting. Quite some difference. Would not expect such an improvement or to be so easily visible at this resolution. I was going to wait for Sean Reid's revue but not sure I will bother!

[lct]

Full resolution.
CV 21/3.5:
https://photos.smugmug.com/photos/i-DgKZWzm/0/47cee379/O/i-DgKZWzm.jpg

CV 21/4:
https://photos.smugmug.com/photos/i-tSjcTwd/0/8c0156e6/O/i-tSjcTwd.jpg

[mike3996]

Good stuff! I half-expect a manual-coding to  some leica lens will correct the rest of the magenta.

[VitorAlmeida]

4 hours ago, lct said:

Full resolution.
CV 21/3.5:
https://photos.smugmug.com/photos/i-DgKZWzm/0/47cee379/O/i-DgKZWzm.jpg

CV 21/4:
https://photos.smugmug.com/photos/i-tSjcTwd/0/8c0156e6/O/i-tSjcTwd.jpg

From your examples:
The CV21_3.5 have more sharpness in the edges and more accurate colors.
The CV21_4 have less cromatic aberrations.
...

I really want to see a ultron 35 21.7 vintage line vs new ultron 35 f2...

[low325]

Looks good

[stephengv]

15 hours ago, lct said:

Full resolution.
CV 21/3.5:
https://photos.smugmug.com/photos/i-DgKZWzm/0/47cee379/O/i-DgKZWzm.jpg

CV 21/4:
https://photos.smugmug.com/photos/i-tSjcTwd/0/8c0156e6/O/i-tSjcTwd.jpg

 

What Leica camera did you use? did you select any profile for the Color Skopar F4? 

[lct]

M240. No profile for either lens. No CA correction either. Some magenta fringing come probably from CA. 

[mike3996]

Very positive remarks by a guest writer over at 35mmc

https://www.35mmc.com/12/02/2019/5-frames-with-a-voigtlander-color-skopar-vintage-line-21mm-f3-5/

[rsolomon]

I check about once a day .... i don't see much news on either of these lenses..... i appreciate all that LCT has provided,  by now i would have thought there would be more "news and info" on these lenses, their  performance, etc. Oh well i'll keep on checking for now 

[lct]

On 2/6/2019 at 7:46 AM, lct said:

[...] Some magenta fringing come probably from CA. 

CA appears like the only significant flaw of the CV 21/3.5 on the digital CL so far:
https://www.l-camera-forum.com/topic/294074-cv-2135-vs-cv-2140-on-leica-digital-cl/?do=findComment&comment=3683600

 

[SteveYork]

I want to see how these two lenses render on black and white film.  

My experience with modern Voigtlanders has been mixed.  I've used a pair of S mount Voigtlanders from 15 years ago on Nikon rangefinders, and they rendered cleanly with a modern look, but recently had a terrible experience with two modern F mount Voigtlanders with B&W film.  Got some weird results, using three different developers, and after 100' finally gave up.  Makes me think those latter two are optimized for color and/or digital with some strange coatings.   

Should probably just stay with Leica optics, they never let me down, but I like to experiment.   So I'm curious to see what these two new lenses do with B&W film.

Edited February 17, 2019 by SteveYork

[lct]

For a comparo between the new CV 35/2 and a Summicron 35/2 asph on film, see:
https://www.rangefinderforum.com/forums/showthread.php?t=167468

[sleepyhead]

These lenses look promising, but I can’t stand the pseudo-retro black/silver styling, nor the silver-nose bayonet for the lens shades. Leica lenses just look much nicer to my eyes.

I know that this is trivial, and that lenses are tools, they should do the job and who cares how they look. But it’s a show-stopper for me.

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Hallo,

Look here: Leica M

[mike3996]

And I'm still interested in hearing thoughts about the CV21/3.5 vs Zeiss 21/2.8