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native ISO sensitivity (which typically offers the highest image quality)

Started Mar 16, 2012 | Discussions thread
bent christian Senior Member • Posts: 1,663
Re: Image quality on landscape photos

theatrus wrote:

All sensors have an idel ISO, which is the lowest standard (not expanded), setting. For Canon dslr cameras this is ISO100.

In Canons that operate with 1/3 stop ISO increments, ISO 160 has been shown to have the least amount of noise at the expense of slightly less dynamic range. Canon generates 1/3 stop increments by either "pushing" the gain up or "pulling" it down from full-stops. ISO 125 is a "pushed" 100. ISO 160 is a "pulled" 200, and has been shown to be the best low ISO setting to use. ISOs 125, 250, 500, 1000, etc. are the worst and probably should not be used at all.

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