epand56 Posted May 6, 2014 Share #1 Posted May 6, 2014 Advertisement (gone after registration) Today I took some pictures wit my CV 15mm M mount on my brand new Leica M 240. I took off the UV/IR filter and the lens is coded as a WATE 16. I had the unpleasant surprise of 4 red corner on my pictures. Here it is an example: 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! On my M8 (with the filter) the 15 Heliar vas working perfectly. Anybody using it with success on their M 240? Any suggestion? Thank you for your kind attention. Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! On my M8 (with the filter) the 15 Heliar vas working perfectly. Anybody using it with success on their M 240? Any suggestion? Thank you for your kind attention. ' data-webShareUrl='https://www.l-camera-forum.com/topic/226649-red-corners-issue-on-m-240/?do=findComment&comment=2584517'>More sharing options...
Advertisement Posted May 6, 2014 Posted May 6, 2014 Hi epand56, Take a look here Red corners issue on M 240. I'm sure you'll find what you were looking for!
g2van Posted May 6, 2014 Share #2 Posted May 6, 2014 Common and expected issue with this combo (I have it too). This blog is your answer (CV 15mm LTM was previous model but makes no difference to the answer) : 15mm Voigtlander Super Wide Heliar f/4.5 Asph Mk-1 Of course if you convert to B&W, there's no need for Cornerfix. Link to post Share on other sites More sharing options...
jaapv Posted May 6, 2014 Share #3 Posted May 6, 2014 Elmarit 21 is the better correction. Link to post Share on other sites More sharing options...
epand56 Posted May 6, 2014 Author Share #4 Posted May 6, 2014 Thank you g2van, a quite instructive page. Thank you Jaap, will try those settings. Link to post Share on other sites More sharing options...
tobey bilek Posted May 7, 2014 Share #5 Posted May 7, 2014 Corner fix program. Free I have mine set as 21 2.8 on M9. Works fine. Link to post Share on other sites More sharing options...
Manu Posted May 7, 2014 Share #6 Posted May 7, 2014 If you use LR, Adobe DNG Flat Field Plugin is very good choice. I think better than CornerFix. Link to post Share on other sites More sharing options...
epand56 Posted May 7, 2014 Author Share #7 Posted May 7, 2014 Advertisement (gone after registration) Thank you for the suggestion Manus. Does Flat Field work as Cornerfix? I mean, I suppose you have to use a flat white background DNG picture taken with the Heliar 15 in order to have Flat Field doing the correction. Am I right? Link to post Share on other sites More sharing options...
Manu Posted May 7, 2014 Share #8 Posted May 7, 2014 Thank you for the suggestion Manus. Does Flat Field work as Cornerfix? I mean, I suppose you have to use a flat white background DNG picture taken with the Heliar 15 in order to have Flat Field doing the correction. Am I right? Yes, but there are two systems of correction. You can use a pattern to all photos, or a pattern of each photo. And you can fix only color or color and vignetting. My review about this plugin. http://www.leicaeme. Link to post Share on other sites More sharing options...
jaapv Posted May 7, 2014 Share #9 Posted May 7, 2014 In C1 it works well with an image of the sky taken through a sheet of paper or an expodisk in my experience. I guess LR is the same Link to post Share on other sites More sharing options...
wlaidlaw Posted May 7, 2014 Share #10 Posted May 7, 2014 I have relegated this CV 15 lens to use on my M9, where it works well. I ended up buying an 18SEM to replace it for my M240 and I love this lens. I was going to buy the Zeiss 18mm ZM Distagon but then a German dealer offered me a price for a new 18SEM that I would have been mad to refuse. The 18SEM does not have a trace of red edges but, of course, I understand its exit pupil is further forward than the CV 15. There is an easy answer to red edges, which on the Capture One I use, is to make a lens profile for the CV 15. However, when you have a batch of shots where the CV 15 images are all mixed in with other wide angle shots, you have to go through and pick them all out to apply the profile, which on a large batch, can be time consuming. The red edge is also a bit aperture dependant, so you can end up with over correction. Wilson Link to post Share on other sites More sharing options...
mirekti Posted May 7, 2014 Share #11 Posted May 7, 2014 I wish Leica came out with a 15mm. Link to post Share on other sites More sharing options...
wlaidlaw Posted May 8, 2014 Share #12 Posted May 8, 2014 There is always the expensive (by ZM standards if not by Leica) and large but very good Zeiss ZM Distagon 15/2.8. I think I am correct in saying that this is one of the few ZM lenses made by Zeiss themselves in their cine lens factory at Oberkochen and not by Cosina. It is now temporarily out of production but there are new ones still around if you look. As it is a retrofocal design, it should not suffer from red corners/edges like the CV 15 and my guess is that coding either as a WATE or 18SEM would work just fine. Wilson Link to post Share on other sites More sharing options...
stickan1 Posted May 8, 2014 Share #13 Posted May 8, 2014 It gets better if you code it as 11134, but the problem is still there. Link to post Share on other sites More sharing options...
masjah Posted May 8, 2014 Share #14 Posted May 8, 2014 There is always the expensive (by ZM standards if not by Leica) and large but very good Zeiss ZM Distagon 15/2.8. I think I am correct in saying that this is one of the few ZM lenses made by Zeiss themselves in their cine lens factory at Oberkochen and not by Cosina. It is now temporarily out of production but there are new ones still around if you look. As it is a retrofocal design, it should not suffer from red corners/edges like the CV 15 and my guess is that coding either as a WATE or 18SEM would work just fine. Wilson Presumably an even more expensive alternative might be to use the 15mm R lens with the R-M adapter and EVF2. That must be a very retrofocal design! Perhaps though one would have to wait for one's lottery win . Link to post Share on other sites More sharing options...
Doc Henry Posted May 8, 2014 Share #15 Posted May 8, 2014 Hi Enrico, Glad to hear from you. That's it , you passed to M240 I sent you a PM Regards Henry Link to post Share on other sites More sharing options...
jbl Posted May 8, 2014 Share #16 Posted May 8, 2014 I wish Leica came out with a 15mm. I've been having pretty good luck with be WATE lately. It's not as small as the CV 15mm, but not having to mess with color correction is really nice and I actually really like the Frankenfinder. It's big, but it's really accurate. -jbl Link to post Share on other sites More sharing options...
luigi bertolotti Posted May 8, 2014 Share #17 Posted May 8, 2014 Hi Enrico (and compliments for the buy) : me too experienced the red corners on my 15 (LTM+adapter) ... it's really disturbing the first time you get it (M8 was cropped... ); me too had set the WATE 16, then tried the 21 Elmarit - slightly better... - then tried color lens correction in Lightroom - very little effect... then downloaded Cornerfix... but haven't yet setup it : I think it will be the right solution. Link to post Share on other sites More sharing options...
Leicakillen Posted May 8, 2014 Share #18 Posted May 8, 2014 I code this lens as 21 mm and use it on my M9, and have very little problems with red corners, I really love this little thing! My friend E has an M9 and M240 and says that the problems are much more visible on M240 compared to M9. I have Flat Field in Lightroom, but do not use it very much, don´t have to... /Anders Link to post Share on other sites More sharing options...
wlaidlaw Posted May 8, 2014 Share #19 Posted May 8, 2014 I code this lens as 21 mm and use it on my M9, and have very little problems with red corners, I really love this little thing! My friend E has an M9 and M240 and says that the problems are much more visible on M240 compared to M9.I have Flat Field in Lightroom, but do not use it very much, don´t have to... /Anders Agree 100%. The CV15 and the M240 do not seem to suit, where as the combination works well with the M9. Perhaps “gherkin” shaped micro lenses cause as many problems as they solve. I disliked the Frankenfinder so much, I swapped my WATE with a forum member for his 28 ASPH Summicron and cash. I slightly regret getting rid of it but with the Frankenfinder, I used it so seldom, it was just not worth keeping. The M240 makes things so easy. Even if you have not the EVF mounted, you can just use LV for framing with super wides. Wilson Link to post Share on other sites More sharing options...
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