How to Implement IT8 Color Management When Scanning Film with a Digital Camera?

[Harry]

…and maybe this one:

Out of Gamut: Cracking the Color Code of the IT8 Target

I set out to reverse-engineer the IT8 target—a tool used by photographers and scanners to create camera or scanner color profiles. Wolf Faust made them affordable, and each target comes with a reference file that describes the true color of every patch in XYZ coordinates, independent of any device. Using a Python script, I converted this reference data into sRGB to visualize how those colors would appear on a D50-calibrated screen. That’s when the trouble started. Many of the colors—especially …