I clean mine every couple weeks, but I do nothing more than blow it off with a 
sterile ear-syringe bulb. You won't see dust spots on most prints. It takes f22 
dof or so to make them show up. Do a swish pan against a white sky at f22. If 
you have any dust specs, they'll show up as fuzzy spots.
Paul


> I'm curious as to why exactly people seem so eager to clean their
> CCDs. Did you see the dust in your images? I've had my istD since
> September, and haven't noticed anything bad in my pictures. I haven't
> looked at the CCD either, as I don't care to maximize the chances of
> dust getting in there.
> 
> How often to you guys clean it?
> 
> j
> 
> On Wed, 9 Mar 2005 09:41:25 -0500, David Zaninovic
> <[EMAIL PROTECTED]> wrote:
> > I was cleaning my CCD yesterday with copperhill method.  I did not destroy 
> > my 
> CCD. :)
> > It was quite easy, I needed 4 pec-pads to remove 99% of the dust.  I still 
> have some left, I think it is stuck so it will need more
> > cleanings to go away.  It is probably stuck because of me using the 
> > compressed 
> air.  I will not use compressed air or bulb blower
> > any more.
> > I did not find it hard to wrap pec pads around spatula as I thought by 
> > reading 
> all the instructions and peoples opinions.
> > 
> > 
> 
> 
> -- 
> Juan Buhler
> http://www.jbuhler.com
> blog at http://www.jbuhler.com/blog
> 

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