Re: Cassigrain Binoculars
Rik Hill (rhill@LPL.Arizona.EDU)
Tue, 18 Apr 95 00:48:59 MST
> There was a good description in S & T in the 70's of a 6"F15 Cassegrain
> binocular, on a massive equatorial mount. The whole instrument weighed
> about 600 lbs ! It looked like a collimation nightmare....
There was also an article in an old S&T from the 1960's or maybe
older where some fellow cut an 18" mirror in half to make huge
Gregorian binoculars. I have been unable to locate the specific
reference.-Rik