CV 10mm f5.6 M on Leica 240

[Etruscello]

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I can't find any review which coveres the issue of red-edge or Italian flag syndrome when the CV 10mm f5.6 M is used on the Leica Typ 240. If you have tried this combination, please inform me of your experience. Are there any such discoloration problems? Does using the code for the Leica 21mm pre-asph lens remove the problem? Must Corner-Fix be used? Thank you for any information. Tom

[pico]

In my experience, use no in-camera lens setting. Corner-Fix is not necessary. Adobe's ACR using generous Fill Light and Recovery take care of almost everything. Polish it off with a Lens Correction using their 15mm lens profile or not! (I found it over-corrected vignetting). No Italian flag or red-edge except for some fine details seen only at 1:1 in things like thin tree branches.

 

It truly an amazing lens. Better than any of their 15mm, at least in my sample.

[james.liam]

Sounds like lots of work. I find myself tempted by the yet-to-materialize 5,6/12. IIRC, it can accept filters, unlike the 10.

[pico]

Sounds like lots of work. I find myself tempted by the yet-to-materialize 5,6/12. IIRC, it can accept filters, unlike the 10.

 

James, it is a lot of words, but very quick and easy to automate in Photoshop.

 

Besides, I suspect the 12mm will require the same steps.

[fotomas]

May be this helps:

http://www.l-camera-forum.com/topic/264317-voigtl%C3%A4nder-10mm-f56-hyper-wide/?do=findComment&comment=3110661

[Etruscello]

Thank you Pico and Fotomas. You are very kind to share your invaluable information. I've enjoyed the CV 12 mm on my M-E, with no significant work needed. Unfortunately, now that my M-E is gone, the 12mm has coloration problems on the M240. I think I'll sell the 12mm and buy the new CV 10mm! Your photos are inspirational, Pico. Tom

[jrp]

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I think that the latest Lightroom (Sep/Oct 2016) has a profile for the 10mm.  From the reviews that I have seen, the 15mm is the most useful of the 10-12-15mm set, because it does not distort the edges as much and, from my own experience, the image quality is usable across the frame (no Iii flag).  The 10 and 12mm have a bit ore purple fringing and when you need them, you need them.

[fotomas]

Here is a comparison between the 10 mm and the old 12 mm V I.

http://www.l-camera-forum.com/topic/264656-new-voigt-10mm-12mm-iii-vs-old-voigt-12mm-ii/?do=findComment&comment=3115431

I would asume that the new 12 mm V III will be as good as the 10 mm, but I never tried.

 

And here an example with the 15 mm V III http://www.l-camera-forum.com/topic/253402-fremdobjektive-an-der-m/?do=findComment&comment=3003095

 

Regards

 

Frank

[pico]

Sounds like lots of work. I find myself tempted by the yet-to-materialize 5,6/12. IIRC, it can accept filters, unlike the 10.

 

Excuse me if I am uninformed, but has Leica suggested a 5.6/12mm? I am fully interested if they have one.

.

[pico]

Thank you Pico and Fotomas. You are very kind to share your invaluable information. I've enjoyed the CV 12 mm on my M-E, with no significant work needed. Unfortunately, now that my M-E is gone, the 12mm has coloration problems on the M240. I think I'll sell the 12mm and buy the new CV 10mm! Your photos are inspirational, Pico. Tom

 

Please do not blame me if your results are disappointing. I use the 10mm on an M9. Gosh, is my face red!

[Etruscello]

Thank you for the clarification, Pico. I won't buy the CV 10mm until I am sure I will not need Corner Fix for it on my M240. Do you own an M240 or have easy access to one? If so, would you mind trying your 10mm on it? I'd appreciate your assessment when and if you find the time. Tom

[fotomas]

All my examples where made with the VC 10 mm on a M 240. So you can judge.

[Etruscello]

Thank you, Fotomas. I misunderstood and thought your photos were with an M9 also. Your photos inspire a purchase of the 10mm on my part. But, to make sure I understand, is it the case you did not need Corner Fix? What codes or profiles do you use? Is your post processing extensive? Be assured that I would not blame you or anyone if I don't like the results of my 10mm on my M240 -- I realize that photo equipment may have sample variations. If I have to, I will do the extra post processing. Thanks for any final information. I act on Monday. Tom

[fotomas]

All my pictures are processed with Capture One 7.2.2 without any special lens profile or correction. The camera was set to automatically lens detection, so that the lens was recognized as uncoded in C1.

No use of CornerFix or an LCC profile.

[bocaburger]

Seems like Cosina's newer lenses are being formulated with the M240 in mind.  The 15mm VIII needs no correction, apparently the 10 doesn't either and neither would the new 12.   That said, while I sprung for the 15 VIII, I'm hanging on to my old LTM 12, and will forego getting a 10.  I find it uncomfortable doing the Charlie Chaplin stance with my feet to keep them out of my shots

[Etruscello]

I started this thread and would like to thank everyone for their contributions.  I have since purchased the CV10mm for my M240 and am quite pleased with the results.  So far, my work is just test shots.  When I have a decent aesthetic image or two, I will share.  For now, I'll briefly indicate what my tests show.

First and foremost, there is no red-edge.  I am quite pleased about this because my old CV15mm (screw mount with adapter) does produce red edge on the M240.  ( I still use the 15mm on the M8.2 as a 20mm equivalent with IR Cut filter and Leica 21mm Pre-asph code.)  

I don't like using Corner Fix, with this lens I get fine results with normal PS Raw pp.  No linear distortion, no CA from center to corner, no vignetting, very good sharpness at center wide open,  good corner sharpness at f8, natural micro and macro contrast and color saturation, and fine flare control -- most of this after pp.

Some of these characteristics require raw pp.  In PS Raw, I check CA and choose the profile for CV 15mm III.  (The profile for CV 12mm over-corrects the corners for vignetting.  The CV10mm profile is not available yet.  No profile and manual manipulations in Raw work well for me also.)  Even after attaching the CV15mm III profile and checking CA removal, purple fringing remains in the corners.  That is entirely removed when I use the Raw manual Purple Defringing slider.  This results in no loss of image sharpness!

I find that using no in-camera code profile works fine.  I find also that using the in-camera Leica profile for the 21mm pre-asph works well also.  The disadvantage of the latter is that it produces some light green cast in the corners -- easily removed with a wide px lasso and some Red and Magenta addition.  The advantage of the 21mm pre-asph profile is that the camera image previews on the M240 LCD show corner detail.

That's it for now.  Thank you.  My 10mm doesn't have the snap of the Leica WATE at 16mm, but then again, no Leica lens goes to 10mm!    Tom

[pico]

Tom, your observances are the same as mine. It is like the 10mm was designed for our digital M cameras.

 

As one who has followed super-wide lenses for forty years, I  am most be impressed by the 10mm. I think it is the penultimate wide angle lens, and considering the development of WA,  it is likely to become the ultimate. Time will tell. It's a bargain as well. I got mine from www.cameraquest.com.

.

[mirekti]

Anyone else with this lens?
 

[Hannes Lummes]

I've had one from November. I love it.
When I remember I choose 28/2 for the coding, it gives the best corner color for me, but it is not bad even uncoded.

 

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[mirekti]

If I put OUFRO extension ring between CV10mm and camera what would be my focusing range?

Does anyone know how to calculate this?

The idea is to take some close up pics of people yet I’d like to include lots of environment too.

At the momemt, my widest lens is 24mm and the human face doesn’t fit when in focus.