Chapter 4 Video Camera Operations
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Gain Control
Gain is the strength of the video signal. Some cameras have a “gain
select” or “gain switch,” while others may have this feature available
through a menu option. On a studio camera, the gain control may be
located on the CCU. If this function is available, you should be aware of its
effect on the recorded image. Improper use of the gain switch can result in
unusable footage. Adjusting this control allows the strength of the signal
going from the camera to the recorder to be increased or decreased. The
white level, black level, color, and tint are all equally affected when the
gain setting is changed.
gain: The strength of a signal.
Figure 4-4. A—If a white balance is not performed in an interior scene lit with consumer lights, the result will
have a yellowish tint to it. B—If a white balance is not performed in an exterior scene lit with sunlight, the result
will have a bluish tint to it.
A
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B
Not White Balanced White Balanced