Definition of gain-up in English:

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gain-up

Pronunciation: /ˈɡeɪnʌp/

noun

A control on a video camera used to increase the gain when filming in dark conditions.
Example sentences
  • This is unlike conventional cameras where the use of electronic gain-up in low light conditions amplifies noise as well as the video signal.
  • The excellent quality of Canon's optics and the availability of features like gain-up are two of the reasons that I selected Canon over other brands.
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