Help with ISO

Started May 15, 2013 | Discussions thread
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Gerry Winterbourne Forum Pro • Posts: 11,853
Re: Help with ISO

As already stated, increasing ISO in a digital sensor increases the noise.  The dynamic range (the ability of the sensor to capture detail in both deep shadows and bright highlights) is reduced when shadow detail is obscured by noise.

For high contrast subjects, therefore, it's best always to shoot at the lowest possible ISO consistent with the other parameters of aperture and shutter speed.

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Gerry
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First camera 1953, first Pentax 1985, first DSLR 2006
http://www.pbase.com/gerrywinterbourne

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