Definition of gain-up in English:

gain-up

Line breaks: gain-up

noun

A control on a video camera used to increase the gain when filming in dark conditions.
More 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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Pronunciation: wiːn
verb
be of the opinion; think or suppose