I'm keying a log-c footage from arri alexa
I made it very good by applying a color lut but i need to send back a log-c.
that was my work Flow:
precomp of the green screen shot,
than when i apply the trcmate on a untouched footage it dose not give me a good result and i have a green edges.
Keylight performs better with Rec 709/601 or P3 footage. Color correct first, apply keylight, and then use the resulting alpha channel on the original log-c footage. You'll find you'll usually get better results.