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Re: ATM 8" mirror questions - weight, good sources, mirror cells?



ric rokosz wrote:
> 
> santryl@cadvision.com writes:
> >
> >
> >    Do you want the very best?  Barry Arnold of Arnold Optics, 433 Sioux
> > Road, Sherwood Park, Alberta, T8A 4H2 (403)467-4781 makes excellent
> > mirrors.  Our 20cm f6 mirror cost 450 Canadian, for primary and matching
> > secondary, last spring.  With a U.S. dollar buying about 1.3 Canadian
> > ones, you can get quite a deal on a premium product.
> >
> Seems those Canadians sure aren't cheap!Heard that Ceravolo charged a guy
> $500 CDN to refigure a 6 inch f/6 mirror.
> 
> Ric
> Toronto
> 
> --

After spending some not few hours making a quarter wavefront 8" somewhat 
better, those costs mentioned seem reasonable.

Priced a good 6 to 8 inch APO lens lately? ;-)

Mike