How should I light the Chromakey Screen or Background?
Remeber two things .. (1) Keep the lighting flat on the subject – using two lights at 45 degree angles, (2) make sure there’s enough seperation or space between the subject and the blue or green screen/background. One of the biggest mistakes is to allow the light spill over. Another advantage of space between the background and the subject is the color of the background won’t bleed or spill over onto the subject (you don’t want blue or green halos around your subject).