rivi1969 Posted October 28, 2019 Share #1 Posted October 28, 2019 Advertisement (gone after registration) Hello to all, In 3 weeks my wife and I will travel to China, after too much deliberation I decided to bring my M9 with the 28mm f2 Asph and the Zeiss 35mm f2. I think it would be a nice addition the 21mm f4 Color-Skopar for those great wall - Guilin mountains shots, but I read the images have a very pronounced magenta vignette, I wonder how bad it is? I check on Lightroom and couldn’t find how to modify a color cast from the corners, sharpness wise I read is excellent though. I don’t want to invest more than 500 bucks since it won’t see much action afterwards. Thank you! Ricardo Quote Link to post Share on other sites More sharing options...
Advertisement Posted October 28, 2019 Posted October 28, 2019 Hi rivi1969, Take a look here Voigtlander 21mm f4 magenta corners?. I'm sure you'll find what you were looking for!
Guest Posted October 28, 2019 Share #2 Posted October 28, 2019 There is a review by joeri van der kloet that suggests the problem can be avoided by coding the lens as a leica 21mm f2.8 11134 but i have no practical experience to confirm that. Sorry i cannot do links. Quote Link to post Share on other sites More sharing options...
Jean-Michel Posted October 28, 2019 Share #3 Posted October 28, 2019 (edited) I had that lens, and was happy using it on film M’s and on my M9 and M-P. It does display the “Italian flag” edges. That Is easily enough corrected with Cornerfix. At the time, the lens came with the plastic viewer and cost less than the Leica viewer alone. I traded it for a Tri-Elmar, which is quite amazing and does not need fixing in Cornerfix. The are a few treads on this subject in the forum. coding as a 11134 helps but is not sufficient Edited October 28, 2019 by Jean-Michel 1 Quote Link to post Share on other sites More sharing options...
TomB_tx Posted October 28, 2019 Share #4 Posted October 28, 2019 On my M9 the coding as 11134 worked very well, as long as the ISO setting is low. (The color correction is less effective at high ISO settings.) I may not be as discriminating as some, but I usually don’t notice a corner tint unless shooting blank white walls. It’s a handy tiny lens to keep in a corner of your kit. 1 Quote Link to post Share on other sites More sharing options...
lct Posted October 28, 2019 Share #5 Posted October 28, 2019 Magenta corners and edges on the M240 here so i suspect the same or worse on the M9. The later CV 21/3.5 has fixed this issue but has more CA. 1 Quote Link to post Share on other sites More sharing options...
TomB_tx Posted October 28, 2019 Share #6 Posted October 28, 2019 (edited) 6 minutes ago, lct said: Magenta corners and edges on the M240 here so i suspect the same or worse on the M9. The later CV 21/3.5 has fixed this issue but has more CA. From what I’ve seen the corner issue with this lens was worse on the Typ240 than the M9. The M10 is better than both. Edited October 28, 2019 by TomB_tx 1 Quote Link to post Share on other sites More sharing options...
david strachan Posted October 28, 2019 Share #7 Posted October 28, 2019 (edited) Advertisement (gone after registration) Hi Ricardo I find my M-P240 has quite a bit of edge colouring with any lens wider than, and including, 28mm. It's an irritation but quick to correct in LR, using "flat field correction", which is easy once you are set up. I haven't found in-camera coding non-leica lenses, as wide angle Leica lenses, to do much good at all. Best to use flat field correction. I leave you to find the instructions. Basically you shoot some colourless dng frames just showing the edge colouring and vignetting. These frames (kept in a known folder) are compared against the dng image and a correction is applied in computer. It is part of Light Room. All best. Edited October 28, 2019 by david strachan 1 1 Quote Link to post Share on other sites More sharing options...
rivi1969 Posted October 29, 2019 Author Share #8 Posted October 29, 2019 Thanks for all your responses, I will code it as 11134 and start from there 👍🏼, (Hopefully I won’t need to crop to 28mm which I already have). Thanks David I will check that process too. Quote Link to post Share on other sites More sharing options...
Musotographer Posted October 29, 2019 Share #9 Posted October 29, 2019 It’s an excellent lens (and very small) if you’re going to convert to B&W. On my M9P I had a lot of colour shift on the edges, less so on the M10 but it was still there. I eventually replaced it with the wonderful SEM. Quote Link to post Share on other sites More sharing options...
lct Posted October 29, 2019 Share #10 Posted October 29, 2019 4 minutes ago, Musotographer said: [...] On my M9P I had a lot of colour shift on the edges [...] That is what i thought thank you. I was surprised to read that the M240 suffers from those shifts, which i confirm, and not the M9 i have no experience with. An excellent solution would be to get the SEM of course but i would recommend also the smaller and less expensive CV 21/3.5 the CA of which is easy to fix in PP. Quote Link to post Share on other sites More sharing options...
rivi1969 Posted October 29, 2019 Author Share #11 Posted October 29, 2019 Could you tell me what is the SEM? Sounds expensive 😂 Quote Link to post Share on other sites More sharing options...
Jean-Michel Posted October 29, 2019 Share #12 Posted October 29, 2019 SEM stands for Super-Elmar-M It is a superior 21 mm f/3.4 lens; does cost some Canadian $4000. Quote Link to post Share on other sites More sharing options...
lct Posted October 29, 2019 Share #13 Posted October 29, 2019 30 minutes ago, rivi1969 said: Could you tell me what is the SEM? Sounds expensive 😂 Super Elmar-M 21/3.4 asph Quote Link to post Share on other sites More sharing options...
rivi1969 Posted October 30, 2019 Author Share #14 Posted October 30, 2019 10 minutes ago, lct said: Super Elmar-M 21/3.4 asph Thank you, I was right lol. Quote Link to post Share on other sites More sharing options...
lct Posted October 30, 2019 Share #15 Posted October 30, 2019 13 minutes ago, rivi1969 said: Thank you, I was right lol. Show me a cheap Leica . The CV 21/3.5 is very good with no red edges and is much less expensive than the SEM. It has more CA though but modern raw converters deal easily with that. Couple of test pics below. CV 21/4 on M240:https://photos.smugmug.com/photos/i-tSjcTwd/0/8c0156e6/O/i-tSjcTwd.jpg CV 21/3.5 on M240:https://photos.smugmug.com/photos/i-DgKZWzm/0/47cee379/O/i-DgKZWzm.jpg 2 1 Quote Link to post Share on other sites More sharing options...
rivi1969 Posted October 30, 2019 Author Share #16 Posted October 30, 2019 Those samples look very nice, amazing clarity and detail. That f3.5 indeed is very good, and significantly less expensive than a Leica or Zeiss. For those interested in fixing the f4 magenta corners I found this which I don't know if is what David mention, is a very efficient solution: https://lavidaleica.com/content/using-cornerfix-correct-images Quote Link to post Share on other sites More sharing options...
david strachan Posted October 30, 2019 Share #17 Posted October 30, 2019 Hi Ricardo Yes, Cornerfix and Flat Field Correction work the same way. I use Flat Field correction because it is part of LightRoom. All best, Quote Link to post Share on other sites More sharing options...
jmahto Posted October 30, 2019 Share #18 Posted October 30, 2019 (edited) I use flat field correction and get good results with CV15, however I never had very good success with CV21 f4 on M240. If I don’t have sky in the pic then it is fine though. Because of this I use it only on film M and stick to CV15 and 28cron for my wide angle need on digital M. Edited October 30, 2019 by jmahto Quote Link to post Share on other sites More sharing options...
Musotographer Posted October 30, 2019 Share #19 Posted October 30, 2019 9 hours ago, rivi1969 said: Could you tell me what is the SEM? Sounds expensive 😂 My apologies - and I loathe jargon and acronyms! - Super-Elmar-M is rather a mouthful though. I got mine second-hand, as I do all my Leica gear, and at a good price. I don’t think the CV 21/3.5 was available then, it seems like a good solution. Quote Link to post Share on other sites More sharing options...
jaapv Posted October 30, 2019 Share #20 Posted October 30, 2019 On 10/29/2019 at 2:17 AM, rivi1969 said: Thanks for all your responses, I will code it as 11134 and start from there 👍🏼, (Hopefully I won’t need to crop to 28mm which I already have). Thanks David I will check that process too. Flat Field Correction is the only 100% solution and quick and easy to use. 1 Quote Link to post Share on other sites More sharing options...
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