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Old 09-11-2012, 04:15 PM
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graham.hobart (Graham stevens)

graham.hobart is offline
Join Date: Nov 2008
Location: hobart, tasmania
Posts: 2,031
focal length question /(focal ratio)

Thank you sir, I have a suspicion that my calculations are wrong because of the added length of the focuser assembly. Will do what you say when the clouds are gone.
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