Unbiased noise test.

Started Feb 28, 2009 | Discussions thread
Iliah Borg Forum Pro • Posts: 25,779
Re: to Iliah: midtone or saturation for ISO? Re: Unbiased noise test.

Midtone is percentage of saturation. Say, I want midtone at 13%. For 12 bits it means 13% of 4095 (given the camera actually reaches that value in raw), or 532. Log base 2 (100/13) is the headroom to saturation; 2.94 eV for the 13%.

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