Generally chroma key is technique for mixing two images. This collapsible chroma key background folds just like a reflector, and includes a carrying case for the ultimate in portable convenience.
Chroma Key blue on one side, Chroma Key green on the other side gives you versatility in photography. Chroma key is used for special effects as it is complementary to human skin.
Chroma key colors were used mainly in video.The great feature of chroma key background is that they are washable. Chroma key has an easy and convenient transport.
Reversible backdrop has an advantage because if you have green clothing object you can use blue backdrop and vice versa. You have to choose the color that is not prominent in your subject.
