Help with ISO

Started May 15, 2013 | Discussions thread
Gerry Winterbourne
Veteran MemberPosts: 7,470
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Re: Help with ISO
In reply to TheVyper06, May 15, 2013

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
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