Re: [ATM] undercorrecting?

["Dream - Telescopes & Accessories, Inc." <shane@dreamscopes.com>]

Group,

Nils and others brought up a point that I neglected to comment about in my 
previous post.

Because of the high airflow that I use in the observatory and over the 
primary mirror, I have never had dew formation on anything on the 
telescope.  When I have the more powerful fan at the top setting I don't 
get dew on anything inside of the observatory, including the inner dome 
walls.  Yet the outside of the dome, the grass and anything else outside 
the dome are sopping wet.

The airflow is not strong enough to vibrate the system.

Soooo, throw high amounts of air at the optics and worry less.  If you have 
enough air flow, the biggest issues one should be thinking about and 
dealing with go away.  Again, quality optics and star collimated optics 
have to be a part of that equation.  You can't get the most out of a system 
without having all three.  There are other issues that are important, like 
the structure, but that's not what we are discussing.

Thank you.

Sincerely,
Shane Santi - President
Dream - Telescopes & Accessories, Inc.
http://www.dreamscopes.com
610 - 365 - 2833 
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