If you’re doing green screen video here are the rules to get the best quality:
1. Light the green screen backdrop as evenly and brightly as possible.
2. Put as much distance between you and the green screen behind you as possible.
3. Light yourself well but don’t aim the lights so you get shadows on the greenscreen.
4. Don’t wear a green shirt.
5. Make sure your green screen is big enough to cover the whole area behind you. Double check in your viewfinder