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20D or 5D
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August 29th 05, 02:38 AM
Alan Browne
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wrote:
In message ,
Alan Browne wrote:
Can you find the "natural" (neutral gain) ISO of the sensor?
Define it, and I will find it.
Simply put, that region where the sensor needs only unity gain (analog
and digital).
For example:
http://www.dpreview.com/reviews/koni...lumi-graph.gif
....has the 7D noise lowest at ISO 200. This suggests that the unity
gain ISO is somewhere in the region of ISO 200 (though not exactly there).
Cheers,
Alan
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