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Old 13-05-2013, 03:28 PM
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alistairsam
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Join Date: Nov 2009
Location: Box Hill North, Vic
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one example for dual scopes

http://www.buytelescopes.com/images/thumbs/0049672.jpeg

found some math here. overhead transmission for me.
http://www2.warwick.ac.uk/fac/sci/ma...aticmount8.pdf
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