Three point lighting

Three point lighting is a technique used in film and forms the basis of most lighting. The technique uses three lights called the key light, fill light and back light. To fully utilise the technique you will need all there lights but the principles still remain even if you have only have one or two lights. All three lights have their own purpose: Key light- is the 'main light' source on the subject; fill light- This light helps the 'key light' by filling in the shadows created by the key light and preventing it from getting too dark; back light-  The 'back light' ensures the subject is separated clearly from the background.