Re: [ATM] F/10 or F/8?

["Greg Jones" <gregj888@comcast.net>]

Curtis,

Either is do-able but at  f/10 the foucault shadows are very soft.  If you
go to f/12 you can use a sphere and do quite well.

My suggestion for a first scope is an 8" f/6:  Nice light gathering, tube is
reasionable, not much harder to figure than a 6" f/8.  JMHO, but I do weird
scopes so would never tell anyone not to try something they were interested
in.

Greg
----- Original Message ----- 
Message: 5
Date: Mon, 13 Jun 2005 15:46:32 -0600
From: Curtis Spivey <curtis.spivey@gmail.com>


Can anyone tell me if there would be any advantage in making a mirror
in an F/10 vs. a F/8?  Seems like everything is a an F8.  This will be


-- 
Curtis
Nampa, Idaho

_______________________________________________
ATM mailing list http://www.atmlist.net/