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A B C D E F G H I J [K] L M N O P Q R S T U V W X Y Z

K

Kelvin.
Temperature scale used to measure and define the colour of a light source; relating to colour temperature with blue being a low colour temperature or cool colour and red being a hot colour temperature.
Key (or luminance key).
Special effect where the dark parts of one camera's picture are replaced with parts from another camera's picture.
Key frame.
The key frame is the baseline frame against which other frames are compared for differences. The key frames are saved in their entirety, while the frames in between are compressed based on their differences from the key frame. Key frame or I-frames are inserted every 12 to 15 frames and are used to start a sequence, allowing video to be played from random positions and for fast forward/reverse. Decoding of video can start only at an I-frame.
Key light.
The term used to describe a subject's main source of illumination. When shooting outdoors, the key light is the sun.
Keypad.
In a multi-zone audio system distributed in multiple locations around a home or building, a keypad allows a person to control the volume and other aspects of audio being sent to a specific zone in which the keypad is located.
Key sensitivity.
Control on a switcher/SEG that determines how dark something has to be before it disappears and is replaced by another camera's picture. In chroma keys, it determines how much colour something needs before it is replaced by another camera's picture.
kHz (Kilohertz).
One thousand cycles (vibrations) per second, represented by 1 KHz, which is near the sound frequencies of speech.
Kinemation.
3-D animation feature allowing you to move one part of a flexible, jointed object, and have the other parts follow naturally.
Kiss black.
Fade to black followed immediately by a fade up on a new picture.
Ku-band.
A range of microwave frequencies between 12.5 and 18GHz.
Kukaloris or cookie.
A metal pattern which, when inserted in a pattern spotlight, projects a design.

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