Re: [APML] Equivalent ISO of an ST10E CCD

["Franklin A. Holub" <lists@my-spot.com>]

Actually the reference (for 20,000 ASA) was the SBIG ST-4 users manual, page
2...

Frank
http://www.my-spot.com

----- Original Message -----
From: "Alan Voetsch" <critter12952@yahoo.com>
To: <astro-photo@seds.org>
Sent: Saturday, April 06, 2002 2:42 AM
Subject: Re: [APML] Equivalent ISO of an ST10E CCD


>
> > > What is the equivalent ISO of an ST10E CCD camera.
>
>
> I haven't seen this answered yet, maybe I can get you
> in the ballpark. I could not find the reference, but I
> did read a few years ago (big help huh?) that a CCD
> camera is the equivalent of ASA 20,000. If you take
> into account an increase in overall QE over that time
> span, a good guess would be 30,000-40,000. Obviously,
> this is not ST-10 specific and is basically a wild
> guess on my part.
>
> Alan
>
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