To answer this question, you need to know the purpose of the image? If one is doing quality professional portraiture and adding complementary backgrounds to enhance the overall product, then optical projected backgrounds such as those created by the Virtual Background System are certainly the preferred method. With optical virtual backgrounds, the photographer actually sees; live, in the camera viewfinder, the subject, the props and the background, enabling him to make adjustments to create the perfect image. But if one is doing event “fun” type photography, such as placing the subject in a golf cart that is sliding off a cliff high over the Grand Canyon, or switching heads on bodies, digital Chroma key (green screen or blue screen) is sometimes the preferred method.
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