[Andy Winter] “as far as i know in the recommandation 709
there is no strictly defined gamma, therefor
one has to chose the gamma of the monitor
which was used during grading.
“
There is an implied gamma, which has been interpreted as 2.2 for non-crt display. For a long time this was the defacto standard.
Now there is an explicit standard Bt.1886 which sets the gamma at essentially 2.4. Of course getting the whole world to switch gamma standards isn’t easy. And the issues of what gamma in which situations is itself somewhat tricky.
So your advice Andy is actually the right way to go. Find out what the gamma was set at in the grade… and it helps to know explicitly what the room was set to as well.
At the end of the day, the best results for theatrical exhibition is to grade in a theatrical environment.
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