well, doubling the number of frames ought to reduce the noise by a factor of 2, assuming that thermal noise is all that you are seeing. i think that at ISO 200, on a 6MP sensor, there isn't anything to be gained that couldn't be more easily gained by using a better DSP and better circuit design. the Nikon D2X fits 12MP into a sensor the same size as the D100, which is the same sensor used in the *istD, and reputedly gets better noise characteristics.

Herb....
----- Original Message ----- From: "Glen" <[EMAIL PROTECTED]>
To: <pentax-discuss@pdml.net>
Sent: Tuesday, September 13, 2005 10:44 PM
Subject: Re: What Ever Happened to Chrome? was: Being There


Has anyone ever tried taking several shots of a stationary subject, with your camera on a tripod, and then averaging the frames together in software? I wonder if that could possibly make ISO 200 look even more noise-free than it currently is?

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