Baffling and A comment

PFAFF2@delphi.com
Fri, 31 Mar 1995 21:36:27 -0500 (EST)

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> From: Steve Scampini <scampini@hpangrt.an.hp.com>
> Subject: Baffling and A comment
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> Hi Guys,
> First the question for the business only sensibilities and then a comment.
> Any good tips on light baffling techniques... my scope is bare cardboard
> now and I know I am getting stray light/losing contrast. The obvious is
> flat black paint, but I have heard about using glue and sawdust or kitty
> litter for more dispersion. I tried some experiments with open cell
> weatherstripping in terms of compatibility with paint. For those with
> experience with sawdust or other dispersants, what kind of glue and how
> was it applied. Any special paints or just hardware store stuff? TIA.
>
> The comment regards the veritable torrent of comment I seemed to unleash
> with was my naive question on the Horsehead. It seems to have evolved into
> an interesting discussion of the definition of what exactly is ATM and is
> it alive or dead. I think the simple answer is that it is alive and that
> those who build things, sometimes built scopes; those who buy things
> sometimes buy scopes. I "built" my 10 inch Dob but bought the mirror,
> partly because I was more interested in the mechanicals, but mostly
> because I have an active family life and can only steal an hour or so
> a week for this stuff. I greatly am in awe of the serious glass pushers
> but consider myself an ATM. I suspect that almost everyone buys their
> eyepieces but that is taken for granted. There is a smidge o concern
> that ATMs will stratify into those that grind and those that don't grind
> their primaries. I also brew beer as a hobby (used to, until aperature fever
> set in) and that "society" is stratified into those who grind their own
> grain and those who buy what is called extract. I think the emphasis
> should be on enthusiam, support and inclusion. Off the soapbox,
> Clear skies
> Steve
>
>
Steve: There is a great artical in Riverside Telescope Makers Conference 1991 proceedings. Baffling Newtonians for Improved Contrast by Richard Combs. If you are serious about baffling this artical show you how to do it without math. I saw this at RTMC and does work. Bob Pfaff