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What is Gain?

 
Author desmondqford
ZRO
#1 | Posted: 16 Oct 2012 04:25 | Edited by: desmondqford 
Please define in layman's terms what exactly is "gain." What are its uses?

I come across the term often, but everyone seems to have a different understanding of it. I recently read that gain is the video equivalent to ISO, however, video cameras have ISO settings as well.

Many thanks!

Author Steve

INF
Male
#2 | Posted: 17 Oct 2012 07:37 
Depends...

Gain on a display, or gain on a camera.

On a display it is 'contrast', lifting the highlights further away from black, without affecting black.

On a camera is is a way of electronically boosting the signal. Not the same as ISO.

Steve
Steve Shaw
Mob Boss at Light Illusion

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 What is Gain?

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