Heheheh! Yep! You are right. Some day I'll get a webcam... for now,
the b&w imaging of the 237 will have to do. Yes - I was really amazed
at the overall trauma caused by the fan spinning around. It doesn't
make a whole lot of difference at f/5, but at f/12 the difference is
marked.

~john
--- In ccdimaging2@yahoogroups.com, serena_aussie <no_reply@y...> wrote:
> --- In ccdimaging2@yahoogroups.com, "John A. Blackwell" <johnb@r...>
> wrote:
> >
> > Some more Mars images. >
> > ~john
>
> I have wondered how vibration free fans could be made at affordable
> prices. The improvement in definition without the fan is quite
> marked. Now all you have to do is grab a webcam to replace the astro
> CCD ;-)
> Kidding aside, you have obtained excellently detailed images.
>
> Serena