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Re: [APML] OT: CCD experiences



There some really great images of objects we don't see quite as often!
Jim Ives
----- Original Message -----
From: "Matt BenDaniel" <matt@starmatt.com>
To: <astro-photo@seds.org>
Sent: Sunday, December 01, 2002 11:36 PM
Subject: [APML] OT: CCD experiences


> Jim,
>
> The camera is based on a KAF3200 chip.
>
> We know that, even when transparency is good enough for imaging, relative
humidity approaching 100% is not unusual for some sites. It is a natural
aspect of the nighttime environment. The camera had an engineering defect
that allowed humidity to work its way into the cooling regulation circuit.
That killed the camera in Chile and when I returned home, I sent it back to
the manufacturer. They made an engineering change to the camera and returned
it to me. BTW the same problem affected at least one other user AFAIK.
>
> I deliberately refrained from mentioning the manufacturer in the article
as a favor to them, because they are nice folks and worked very hard on the
problem.
>
> I have had other problems with the camera (mostly involving noise, which I
guess is consistent with Tony's complaint), but that's a story for another
day...
>
> The (film) pix from the Chile trip are here:
> http://starmatt.com/gallery/astro/chile.html
>
> If you don't have the November issue, the article will be available at
some point in the future in the archives at S&T:
> http://skyandtelescope.com/magazinearchive/
>
> Matt
>
> At 23:18 01-12-02 -0500, Jim Ives wrote:
> >Hay Matt I read your article about your trip to S. America. Very
> >interesting. Sounded like one hell of an adventure!
> >    You mentioned in the article that your CCD camera gave up the ghost
as
> >it were. What kind of camera did you take with you?
> >Jim
>
> --
> Matt BenDaniel
> matt@starmatt.com
> http://starmatt.com
>
>
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