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B&H glossary for Professional Video,
   

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Glossary for Lighting Terms
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K

K

  1. Abbreviation for Kelvin.
  2. An abridged version of Kilowatt in the theater, film and video industries.

Kelvin (K)
In the metric system, a graduated scale used to measure temperature with 0° (-273° C) being the total absence of heat (absolute zero). Each degree is the same magnitude as a degree in the centigrade scale.

Key Light (Also “main light”)
The principle source of light which establishes the character of the lighting, including atmosphere and mood. It may suggest a source, like the sun, or a window.

Key Grip
The supervising grip on a production, i.e. the person ultimately responsible for all other grips and grip equipment.

Kicker
A low-angle side-back light that adds a slight glare to the side of the subject.

Kilowatt (kW)
1000 watts.

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