White point and ICC profiles

[ohtoulouz]

Hello,

I have a question for you about ICC profiles and white point. Looking at official ICC profiles from paper and printer manufacturers, I have noticed that their gamut volumes are very similar among gloss/luster/baryta papers and among fine-art/matte papers. So, I was thinking to limit custom ICC profiles to two profiles only (to avoid spending too much time and wasting papers). Even if gamut volumes are very similar, there are discrepencies in white point inside the ICC profiles. So my question: How would colors be affected if I use the profile of a cold paper when printing on a warm one (and vice-versa, of course)? too cold? too warm? no visible effect?

Thanks,

Pierre

 

[W. Fisher]

I attended a "Papers or Prints of the World" class at Freestyle Photo in Los Angeles. One thing that came out of it was several of the Epson profiles for their papers are the exact same thing, just a name change of the paper. The profile's color gamut volumes were exactly alike! No way if one were to make their own profiles of each of those papers would they be an exact color volume match. Was sort of surprising they got lazy in making them for whatever reason, and just made a copy of another.

Probably best to make your own paper profile which might be even better than theirs. They do change print appearance (color) with a different paper and base so you need one for each specific paper. Different printer, different profile too. A Calibrite ColorChecker Studio spectrophotometer might be a good starting point. I have over 880 profiles, but some are also for my various cameras and lenses as well as a bunch of papers, in my Windows 11 CWindows|\System32\ spool\drivers\color folder. Can also do your monitor too to match the prints.