3 Point Lighting Principle

Key Light- is the brightest source and the main provider of subject illumination. The primary source of key light is to "reveal the basic shape of the subject".

Fill Light- is positioned at an opposite angle to the key light in front of the subject. It is intended to compensate for falloff by softening the dark shadows created by the key light without eliminating them entirely.

Back Light- helps separate the subject from the background by accentuating the contours of the subject's hair and shoulders.

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