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Re: [ATM] 7 inch sphereical mirror
Don't see why not, I've seen 8" F10 spheres that produce "diffraction
limited" views, now not having tested them I can't say if they, as Dale
mentions, had a touch of correction polished in by "mistake" or not, but the
images were very good....
IIRC Tex mentions 8" F8 spherical as being good enough to leave
unparabolised, so going a tad longer on a small optic should be fine.
Cheers, Thomas.
-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
Russell Jocoy
Sent: Saturday, 12 April 2008 12:40 PM
To: ATM list
Subject: [ATM] 7 inch sphereical mirror
To all, Can a 7 inch disk be formed to a sphere and polished at f/10 and
not be parobolized?..
And produce correct images to the eyepiece?? There are dispute's on this
answer..Russ
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