AE working space

[Nils J. Nesse]

Going to 35mm via Cinevator.

Adobe says
ProPhoto RGB with a linear tone response curve (gamma of 1.0) is a good choice for digital cinema work.

Is this what I should work with?

 

[Stepan Kment]

note that in latest version of color management in AE, they changed that, they recommend using camera universal printing density instead.

However, as far as I understand, ProPhoto will be OK. NOT in 8 bit, ensure you use at least 16-bit comps, otherwise You may.. and will probably.. experience nasty banding in gradients, as proPhoto is very wide space.

So - imo - it won't harm. Certainly better choice for working profile than Rec.709, for instance.