Re: [APML] FYI - ST-4 desiccant ring

["Geramy Rapp" <astrophotography@hotmail.com>]

I read somewhere (and have since done it myself) that you can take the ring
out of the camera head, put it in your oven at around 400 degrees for 10 to
15 minutes, take it out and let it cool, and then put it back in the camera
head.  This evaporates all the moisture out of the ring and "recharges" it.
I have never replaced mine in over 6 years... just "recharged" it as
described above whenever I see condensation or ice crystals forming inside
the window of the CCD.  It has always worked great for me!

Geramy
----- Original Message -----
From: "Chris & Jennifer Cook" <ccjd@ix.netcom.com>
To: <astro-photo@seds.org>
Sent: Tuesday, May 29, 2001 7:46 PM
Subject: [APML] FYI - ST-4 desiccant ring


> If you every need a new desiccant ring for your ST-4, you're out of luck.
I
> called SBIG today and they are back ordered indefinitely.  You can put
your
> name on a list to be contacted if they become available.  They said they
> have no clue when and if they will ever get any in stock again.  I'm very
> surprised and disappointed that SBIG has no alternative.
>
> So, does anyone else have a alternative for a desiccant ring to use in the
> ST-4?
>
> Chris
>
> ==================
> Chris Cook
> http://www.abmedia.com/astro
>
>
>
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