#Negative color converter manual#
I eventually found that it worked faster and better than the other manual methods I described, so I purchased a CP license. The text on my web page is ambivalent about the CP plugin. ColorPerfect includes a program that makes a more workable linear TIFF file than any of the methods that were described in the LuLa thread. This plugin sidesteps a lot of the contortions you end up doing to null out the negative's orange mask. My page eventually describes the method I found worked best: using CF-Systems ColorPerfect Photoshop plugin. My final post in that thread lead to a page I derived from participating in the above thread. I actually read that, and it started with the same question, but then seemed to go off more or less in a more classic invert-and-set-white/black-points direction, with additional discussion about Silverfast and Vuescan and ROC.Ī lot of that LuLa thread was me figuring out a workable way of converting negatives. seems a nice discussion of this subject. Or is this like asking "is there a formula for happiness"?Īnd/or, has anyone done this and are such LUT's available? I found some LUT's for various effects for video, but did not see much about LUT's for still negative conversions. In particular, is the math for the LUT something deterministic? If I had a photo of a blank frame (for color cast) and a negative, is there a simple formula for the inversion and removal of the color cast? In particular (I'm a programmer at heart), could I write a program to generate such a LUT, and then tweak the algorithm as needed for color cast? in photoshop, is it possible to (a) invert in a LUT, and (b) remove the color cast in a LUT? with more and more LUT support present, e.g. I can edit in photoshop, invert there and adjust (even bring back to lightroom and edit further) and it looks decent. I can then invert and edit in lightroom and things look somewhere between mediocre and awful. The photograph aspect is nice - fast, easy not as good perhaps as a dedicated negative scanner, but it makes up for a lot in terms of speed and file size. I'm digitizing years of negatives by photographing them and then variously inverting them to positives.
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