Posted by Bob Porter (4.61.197.25) on July 09, 2003 at 18:03:40:
In Reply to: Proud new owner posted by Gaetan Cormier on February 26, 2003 at 13:08:06:
I just tested my 8" f7 cave circa 1978 using Cave's original testing equipment now owned by Ed Beck (Enterprise Optics) an original cave employee. He tested the mirror which I thought was excellent save for the aluminizing which was shot and found a couple of interesting results. First, the mirror had fanatastic surfacing. The mirror had been well polished. This is the first test we made. As far as the shape of the mirror is wasn't as good. Maybe 1/10 wavelength at best because the mirror was slightly undercorrected. Ed Beck who did not make this particular mirror in '78 is going re-make the mirror for me promissing better results. Ed Beck is great at working on mirrors. If your mirror has a scratched star on the side then he is the one who made your mirror.