The “R” in Sony a7Riii is refers to resolution. It captures 42MP still but how is the a7Riii’s video performance for green screen work? I use several cameras, including the a7iii but these are the results that I achieved using my a7Riii in conjunction with my green screen. Please tell me what you think. Is this a convincing Chroma Key effect? You can find all equipment that I used to produce this video below: