Kelvin (K)
In TV, unit of measurement used to describe the color of light produced by the screen.

Keystone Correction

Feature found in front projectors designed to compensate for mounting situations when the centerline of the projector's lens is not perpendicular to the screen. Although keystone correction allows greater mounting flexibility, it almost always reduces apparent resolution and makes the image dimmer.


Key
A general adjective denoting importance.

Key Grip
AKA: Key-Grip
The chief of a group of grip s, often doubling for a construction co-ordinator and a backup for the camera crew , that also moves a dolly. Key grips work closely with the gaffer .

Kickoff
The start of production or principal photography .