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Re: [ATM] All Spherical Relay Telescope

Michael Lindner wrote:

>Sky & Telescope, Nov. 1977 pages 425-432 D. C. Dilworth, "A New Catadioptric 
>Telescope"
>
>

However, it might be that Dilworth put additional information in the
December issue; the S&T archives list an additional article with the
same title and author.

>both designs are also covered in Rutten and van Venrooij's "Telescope Optics" 
>published by Willmann-Bell.
>
NIMHO
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