[old_tv_nut]

Note on the TK-41 image orthicon color cameras:
The gamma correction was a three-linear-segment approximation to a power curve, so it was definitely too shallow at the dark end to compensate for the real CRT power curve, resulting in compressed shadow contrast. Also, it approximated a gamma of 1.7 instead of the nominal gamma of 2.2, resulting in increased contrast and color saturation. This was the same trick as applied in earlier color reproduction processes like color photography and printing, but resulted in exposure level being critical, with set design color selection needing a restricted contrast range for pleasant results, and the occasional appearance of bright white shirts as somewhat fluorescent and glowing. White clothing sometimes was dyed light gray to compensate, or performers would sometimes wear light blue shirts.