Apologies for a non-lcms although colour related question.

I am scanning old colour negative film. The density of negatives is not 
strictly linear, ie. film characteristic curves indicate lower 
photographic gamma at low exposure. I believe the Kodak Universal Film 
Terms of the defunct PhotoCD system one way or another express that 
non-linearity but I find little information.

Does anyone know what the main LUT published for many major film makes 
resresents and what units/scales are used.

Would appreciate any help.

Regards,
Enno Fennema

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