Hmmm… It’s about the same to ask “How long would take to shoot a feature?”
It really depends, material exposure/lighting condition, length of the feature, how many shots, what kind of look the Director/DP wants, etc.
Generaly you can count 200-300 shots per day (8 hours) for an experienced colorist.
Oh, also materials from digital camera will take more time than film stocks.
Hope that helps.
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