Girl Group Portait Photography

- Back light
Also called a rim light or hair light, the rim light (the third main light in the three-point lighting plan) is placed behind the subject, out of the picture frame, and often rather higher than the Key light or Fill. The point of the rim light is to provide separation from the background by highlighting the subject's shoulders and hair. The rim light should be just bright enough to provide separation from the background, but not as bright as the key light.
Sometimes the rim light is set just off to the side, on the fill light side. This can add edge detail to the shadowed side of your model's face. This can add the effect of having a kicker light using only the three basis lights of three point lighting.