ABSTRACT
A far-side key light is essential for portrait lighting, whether the light is hard or soft. Often green-screen shoots will feature very little ratio, although a strong edge light can look nice stylistically as well as helping to make matte-pulling work easier. Cross keying is a common scenario for lighting with two people facing each other. It can be with three cameras or only one camera, but the placement of lights is very similar. Often the lights need to be rigged in the air to stay out of the camera framing. Cross keying is also a common scenario in dramatic productions such as movies, frequently shot with only one camera. Booklights are trendy right now but require extra time and equipment for setup. Double-breaking diffusion means adding another layer of diffusion between the light and the subject. Soft backlight can be a larger fixture or a bounced source. Negative fill is the subtraction of light from the fill side of the portrait lighting. It is a useful concept for controlling overall contrast on the set as well.
