Last questions - 3

Looking at the LIMITER.TIF file in PS, I can read all the 255, 254, 253, … values distincly with the eyedropper (RGB, 8bit).

Things don’t work that well with the 0, 1, 2, … values.

My PS color settings are as advised in the manual, and I didn’t color managed the .TIF file.

Please, what could I be doing wrong?