Olsen Posted October 18, 2016 Share #1 Posted October 18, 2016 Advertisement (gone after registration) Anyone here with user-experience with this combo: M(240)/M-P with Voigländer 15 mm 4,5. Which manual lens setting do you use? Link to post Share on other sites More sharing options...
Advertisement Posted October 18, 2016 Posted October 18, 2016 Hi Olsen, Take a look here M(249) M-P - with Voigtländer 15 mm 4,5. I'm sure you'll find what you were looking for!
Philip G Posted October 18, 2016 Share #2 Posted October 18, 2016 I don't bother with this lens - I tried a few options when I had the lens first but now just leave the M240 on auto lens detection as I find the results absolutely fine. It's a superb lens and great fun to use, particularly 'shooting from the hip' - although I suppose the purists would dismiss that as lazy photography ! Link to post Share on other sites More sharing options...
Olsen Posted October 18, 2016 Author Share #3 Posted October 18, 2016 If you set the camera on 'auto lens detection' it will look for a lens code which is not there. I tried three settings (16 mm WATE, 24 mm 2,8 and 'off'). I can't see 'any' fignificant difference. All the three settings produced 'red flag' at the edges. Don't the manual settings work? Or is something wrong with my camera? Link to post Share on other sites More sharing options...
jaapv Posted October 19, 2016 Share #4 Posted October 19, 2016 Rather something with the lens. Obviously Leica does not provide in-camera corrections for third-party lenses, so it is quite possible that there is no way to avoid colour shifts towards the edges with this lens. The solution is to use flat field correction, which is integrated in C1, and I think a plug-in for Lightroom. BTW, the WATE profile is quite mild and the same for all three focal lengths, as this lens does not need much. The most pronounced corrections are to be found in the 21/28 mm profiles. Link to post Share on other sites More sharing options...
carlmuck Posted October 19, 2016 Share #5 Posted October 19, 2016 If you are a LIghtroom user you can use the Adobe Lens Profile Creator and make your own profile for the lens. Shoot without any settings and use the profile you created in Lightroom in post. Link to post Share on other sites More sharing options...
jmahto Posted October 19, 2016 Share #6 Posted October 19, 2016 If you are a LIghtroom user you can use the Adobe Lens Profile Creator and make your own profile for the lens. Shoot without any settings and use the profile you created in Lightroom in post. Lens profile takes care of distortion and vignetting (not sure), not color shading. You need flatfield plug-in for that. Link to post Share on other sites More sharing options...
brill64 Posted October 19, 2016 Share #7 Posted October 19, 2016 Advertisement (gone after registration) try to code your cv15 manually as the Elmarit-M 28mm f/2.8 (11809). the 16-18-21 coding may cause problems (vignetting, red edge). it did at least on the M9. Link to post Share on other sites More sharing options...
ayewing Posted October 19, 2016 Share #8 Posted October 19, 2016 Anyone here with user-experience with this combo: M(240)/M-P with Voigländer 15 mm 4,5. Which manual lens setting do you use? Which version of the Voigtlander 15mm are we talking about? The latest 3rd version is fine without any coding. The earlier versions did have problems with Italian flag colour casts which were difficult to remove completely by coding and often required correction with the Lightroom flat field plugin. Of course if you shoot in monochrome there is no problem. Link to post Share on other sites More sharing options...
Olsen Posted October 19, 2016 Author Share #9 Posted October 19, 2016 The color shading is just the same - regardless of manual settings: WATE 16 mm or just 'off¨'. The result is close to identical. Link to post Share on other sites More sharing options...
bocaburger Posted October 20, 2016 Share #10 Posted October 20, 2016 I've got a V1 (LTM, same optics as the V2 M-mount w/52mm filter) coded as a 21/2.8 Pre-ASPH, and find it corrects enough of the edge color cast so it passes muster 90% of the time (100% in b&w fo course). I also have the V3, which as others have said seems to do fine uncoded other than not imbedding the lens info in EXIF. I still travel with the V1 as it's so tiny and light. Link to post Share on other sites More sharing options...
jaapv Posted October 20, 2016 Share #11 Posted October 20, 2016 The color shading is just the same - regardless of manual settings: WATE 16 mm or just 'off¨'. The result is close to identical. That is hardly surprising. See post #4 Link to post Share on other sites More sharing options...
Olsen Posted October 20, 2016 Author Share #12 Posted October 20, 2016 Lens profile takes care of distortion and vignetting (not sure), not color shading. You need flatfield plug-in for that. Sure, and it is color shading that is the problem with using this Voigtländer 15 mm 4,5 on a M(240)/M-P. What puzzles me is that 'there is no significant change' if I apply a manual '16 mm setting' - or with the 'lens correction turned off'. Why is that? Link to post Share on other sites More sharing options...
jmahto Posted October 20, 2016 Share #13 Posted October 20, 2016 Sure, and it is color shading that is the problem with using this Voigtländer 15 mm 4,5 on a M(240)/M-P. What puzzles me is that 'there is no significant change' if I apply a manual '16 mm setting' - or with the 'lens correction turned off'. Why is that? M240 does not have correction information for CV15 (since it is not a Leica lens). Several folks have tried different lens coding with some success but it won't cure fully. WATE 16mm is more telecentric design (rear element is not that close to sensor as in CV15) with less of color shading problem. This is why 16mm setting correction is not useful in your case. Your best bet is to use flat field correction with LR. Link to post Share on other sites More sharing options...
jaapv Posted October 20, 2016 Share #14 Posted October 20, 2016 To be pedantic: not the rear element but the optical centre. Link to post Share on other sites More sharing options...
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