Key light
The key light is the principal light on a subject, usually set to one side and at an angle, and the other lights are placed in relation to it.
Other lights, such as the fill, are added to soften the shadows it casts.
Last updated 4 Oct 2026
Related terms
Take it further
Train with working professionals
Knowing the words is a start. Book into live classes, get self-tape feedback from working actors and follow a plan built for you.