Thread: large primary
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Old 20-09-2012, 06:12 PM
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Satchmo
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Join Date: Dec 2005
Location: Sydney
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Obsession Telescopes have 20" mirrors 'off the shelf' made by OMI and Galaxy Optics so long as you don't mind an F5.

There you go : 20" F5 off the shelf for $3300 USD

http://www.obsessiontelescopes.com/ATM_parts/index.php
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