If we are talking non-Leica lenses, then the whole lens profile thing becomes irrelevant. In all, it is quick and sufficient to batch corrections. In fact, the 15mm profile overcompensates for vignetting (for my taste) so I skip that. For example, using the CV 10mm with Photoshop 5.1 2 I achieve excellent correction by setting no lens profile which is processed first through ACR, sometimes then from Adobe's profile for the 15mm lens. I religiously use coded lenses wider than 50mm on the M9, recording those lens profiles, because there is just no way to fix the problems those lenses produce on a digital sensor during post-processing outside the camera, at least not unless one has a boatload of free time to fill.Īndy, perhaps you can find where I err. I still have to use a pull-down list to apply Adobe's correction for, say, distortion in a Leica 35 Summicron V.4, if I want (I usually don't want). My Adobe software reads the lens type in EXIF - but for the Leica M lenses, doesn't do anything with that info automatically. I've built my own color profile(s) in Adobe Camera Raw, which is where they get applied. ![]() I shoot only DNG, so the in-camera color profiling is not applicable anyway. But can live without them in the case of, E.G., my 135 Tele-Elmar. Can't always tell 75 from 90 or 90 from 135 shots otherwise. I also like having the coded-lens profiles for longer lenses if possible, even though they do not affect image quality. I tried using an uncoded 35 Summilux pre-ASPH when I first got the M9 - even that barely-wide lens had unacceptably cyan corners unless I ID'ed it from the menu list (or eventually applied 6-bit dots for a 35 Summicron v.4 with a Sharpie). I religiously use coded lenses wider than 50mm on the M9, recording those lens profiles, because there is just no way to fix the problems those lenses produce on a digital sensor during post-processing outside the camera, at least not unless one has a boatload of free time to fill. (Unlike the Leica Q - which basically has a 28mm fisheye lens until corrected in-camera to straighten the curving lines - but that's another story). But some software can use the 6-bit ID in EXIF to automatically correct for CA or distortion for you. ![]() The M9 only corrects for the severe and M9/digital-specific problems under profile 1. The M9 will not correct for distortion or chromatic aberrations, even if it knows which lens you used. The third is never an in-camera profile either. If shooting jpeg, the in-camera color profile can't be turned off or avoided - it is a hardwired step in producing a jpeg in-camera (along with assigning the color into either sRGB or Adobe 1998 color spaces, and "baking in" sharpening and contrast and saturation, etc.). dngs are not assigned a color profile in the camera anyway, only in the "development" of the raw file in the computer afterwards. The second is irrelevant to shooting raw pictures. Without using the M9's in-camera profile for that, my 21mm would be useless. have no way at all of getting rid of the multi-colored (not just darkened) vignetting that a 35 or wider lens will produce on an M9. The only external post-processing correction that even comes close to doing what the camera can do itself in that regard is CornerFix. The first is absolutely necessary to use in-camera if shooting anything wider than 50mm in color. The second is only used in-camera if shooting jpegs. And only the first counts if shooting raw/DNG. Only the first two are "in-camera" - corrections that the camera itself makes or uses as it saves the file. Profile-based general lens corrections not specific to rangefinders - distortion, normal vignetting, chromatic aberrations. Profile of the color reproduction (a camera profile, not a lens profile) ![]() Profiled corrections for wide-angle rangefinder lens problems on a digital sensor (corner vignetting, and color stains around the edges) - the primary reason for the identification of the lens type via 6-bit coding, or the menu list. There are at least 3 things that can be called "profiles" in operating an M9. What "in-camera" profiles are we talking about? (I also use an M9).
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