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My version of Crayford focusser for 10" Newtonian
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21-03-2012, 09:24 PM
bojan
amateur
Join Date: Jul 2006
Location: Mt Waverley, VIC
Posts: 7,113
Quote:
Originally Posted by
Shiraz
...why doesn't everyone use it?
Well, Zeiss does
(or, used to, back in '60ies, not sure about these days)
bojan
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