> Wouldn't it be simpler, and likely more accurate, to use color reference
> standards? At least for folks like AG and Paul, wouldn't it be possible to
> photograph standards upon stage, before the show, at intermission, at
> rehearsal? IT8 target, ColorChecker, even a gray card?
Nope. Been there, done that. At issue is that the pigments used in the
calibration targets are "friendly" to LED lighting. Unfortunately,
real-world materials and skin don't respond the same way.
However, it is true that a good gray card or ND measurement does
pretty good most of the time.
AG
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