Re: [APML] Frost on the ST-4. was: ST-4 values?

[Joe Mize <jmize@globe-net.net>]

Bert;

     I've always wondered, will a strong light harm the CCD or circuitry?  I've
always treated mine as if it would, just to be on the safe side...joe  :)

bert katzung wrote:

> ...snip... I look at the chip with my flashlight
> to make sure there's no sign of frost.
>
> Bert Katzung
> katzung1@home.com
> www.astronomy-images.com
>
> ----- Original Message -----
> "Shekhar Borde" <shekhar@prodigy.net>
> said:
> > Thanks, but I am pretty sure it's not frost.  I live in California <g> and
> > I have seen this problem when it's 70 degrees outside.  Anyway, my
> > ST-4 unit is quite old and doesn't have a dessicant ring.  I think SBIG
> > added that later.
> >
> > I have never really had any problems with mine -- I've just wondered why
> > it won't saturate even with the brightest star.
> >
> > Shekhar
> >
> > > Be sure the window isn't frosted over from the inside. The dessicant
> needs
> > > to be removed and baked occasionally, I did mine every year when I had
> an
> > > ST4. If it frosts up, even a little, the brightness readings get lower.
> This
> > > was one way I would notice that it was time to bake the dessicant.
> > >
> > > Steve...
> > >
> > > swalters@att.net
> > > http://astrophoto.home.att.net
> > >
>
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--
       "May You Go Among The Imperishable Stars"

                              Joe Mize
                      http://sfo.sciastro.net
                  mailto:jmize@globe-net.net
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