Higher ISO or underexpose then corrected in PP?

Started Mar 24, 2012 | Discussions thread
Jack Hogan Veteran Member • Posts: 6,160
Expose for maximum information that allows for desired result

mosum wrote:

If a scene calls for a higher ISO for a correct exposure, for a given shutter speed and aperture would you underexpose the scene with a lower ISO (thus less noise and "perceived" higher DR) and then lift up the exposure in PP, or use a higher ISO to begin with?

Everything I know on this subject I learned from ejmartin, so he is the authority. FWIW, this is where I think exposure strategy is at circa 2012:
http://forums.dpreview.com/forums/read.asp?forum=1018&message=38342664

As far as the D800 is concerned, looking at DxOmark's and bclaff's graphs, one favors 1600, the other 6400, but the difference is so slight that it may be immaterial.

Cheers,
Jack

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