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Re: [ATM] Refractor Baffle Question
On Sunday 02 May 2004 11:17 pm, Bill & Becky wrote:
> I have a homemade 5" f15 refractor that has no internal
> baffling and the darking paint could be much
> improve...
Lining the inside with black velvet or flocked paper is quite effective. For
baffle computations, check out http://www.berfield.com/baffles.html
Or you can use Dale Keller's Newt program
http://home.att.net/~dale.keller/atm/newtonians/newtsoft/newtsoft.htm - tell
it the tube dimensions, but place the primary where your focuser drawtube
starts, and tell it the primary is 2" (or whatever size the focuser is). It
*should* produce a useful baffle list. You can check the result by doing it
the "old fashioned" way, as described in the first link.
--
Michael Lindner
http://www.starastronomy.org *** http://home.att.net/~mikel
http://www.atmsite.org *** http://www.atmlist.net
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