Must ask the Photoshop gurus here this question...
I've come across some photos taken against a green backdrop so that the subject can be inserted into some fake background of famous landmarks.
The setup is quite simple: 2 light stands infront about 8ft up, pointed 45degree down and equilateral distance on left & right of subject ("butterfly lighting"?).
Trouble is, when the subject is cropped out of the green backdrop, there is still some greenish discoloration either on their faces or on the clothes (not talking about fringing here becoz that's due to how tightly one crops).
Without having to clone, clone, clone... to get rid of the greenish discoloration, can the lights be adjusted or reflection/bounced light from the green backdrop be reduced so that it doesn't cast a Martian color on the subject?
Purely a matter of interest topic here

thanks!