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Making a Busack-Riccardi-Honders Astrograph
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01-12-2016, 08:52 PM
clive milne
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Join Date: May 2011
Location: Freo WA
Posts: 1,443
Stefan.. I always loved that design on an intellectual level. practicality aside, so much win!
That may be unfair,
it is a practicable design even with common glass. Coatings probably being the biggest obstacle.
Love your work.
~c
clive milne
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