21 Feb
2003
21 Feb
'03
11:31 a.m.
Hey, my 16-inch f/6.25 only requires an 8-foot ladder. :-) -Rich --- David Dunn <david.dunn@albertsons.com> wrote:
I think that next year I will try making a 20" f/10. I plan to fold the optics and view from the ground. I am researching this year to see how I can correct for Astigmatism and Coma because I would like to put the secondary off axis. So far I think I will have the 20" ground to f/10. I will use a 10" secondary and f/8 and bring the light back down to a diagonal to put the light in my eyepiece.
Dave
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