The missing piece to my CV lens puzzle. I now have the 15/21/28/35/50 all in LTM mount. I got this last Wednesday afternoon, but the weather has been incredibly bland so today is the first chance I've had ot shoot something besides grey. These have absolutely no artistic merit, I'm posting them only to show how much color shift/vignette this lens produces on my 5N. The vignette is fairly pronounced, the color shift is less than I expected. For this series I downloaded the shots, converted to DNG, ran CornerFix and then Exifchange. then I processed the CF shot to a reasonable facisimile of a decently exposed shot. I then applied those settings directly to the original DNG file for comparison purposes. First shot is original DNG, second is the CornerFix file. Again, the first shot is original DNG, second is the CornerFix file. The magenta color shift is more evident in this shot than in the first one. The corners look pretty good here, obviously more testing required. If I get free later this afternoon I'll try and get out and shoot something worth viewing.