Archived posting to the Leica Users Group, 2002/07/25

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Subject: Re: [Leica] Re:CCD Heat
From: Tina Manley <images@InfoAve.Net>
Date: Thu, 25 Jul 2002 21:26:10 -0400
References: <200207252020.NAA10680@mejac.palo-alto.ca.us>

At 07:27 PM 7/25/02 -0400, you wrote:
>Yup-especially at hi ISO's, heat will add noise to an image. The chips 
>used for astronomy are cooled by refrig units. That being said, I just 
>returned from one week with 3 photog's shooting at our Arizona Proving 
>Grounds (aprox 1200 images a day) with temps at about 120 degrees with no 
>visible degradition.
>The problem only shows up at 800-1600 ISO with long exposure times (over 1 
>sec). We use D1X's.
>Roy Feldman


Thanks, Roy.  That's a relief!

Tina


Tina Manley, ASMP
http://www.tinamanley.com

images available from:
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