Posted by Sam Hunt (24.118.28.155) on December 26, 2001 at 11:01:40:
In Reply to: Re: Secondary on Optical Window? posted by Curtis Croulet on December 24, 2001 at 12:46:55:
: : Has anyone mounted a secondary on an optical window in a Cave Newt?
: For what benefit?
To remove diffraction spikes from images.
Most noticeable in stars.