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[OM] Re: Digital noise and high ISO

Subject: [OM] Re: Digital noise and high ISO
From: Joel Wilcox <jowilcox@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 17 Jan 2005 22:14:45 -0600
At 11:03 PM 1/17/2005 -0500, you wrote:
>Joel said:
>  > These are not my concerns, but they are expressed commonly as
>  > concerns.  Canon seems to have made noise suppression its king maker,
>  > and let them have it.  I don't need ASA 1600.
>--------------------------------------------------
>But you have to learn to think of high ISO in digital terms where the
>ISO setting is another (per frame) exposure control in the same sense as
>shutter speed and aperture.  As Moose pointed out recently, noise free,
>high ISO performance can be an equivalence factor for image stabilization.
>
>Image stabilization systems typically allow hand holding the camera at
>about 2 stops beyond not having an IS system.  If camera B can produce
>an image at ISO 3200 that is no noisier than camera A at 800 then that
>reduced noise is a significant performance item.
>
>Chuck Norcutt

Good to know, Chuck.  Thanks.

Joel W.


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