Thread: Bintel Astrograph Newt back-focus
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Old 30-03-2013, 01:03 PM
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astroboy
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Join Date: Dec 2005
Location: Lake Bathurst NSW
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Hmm , I had exactly the opposite problem .
I have a Bintel 8" " astrograph " that to reach focus with an FT focuser , Parracor 2 and DSLR I had to extend the tube 100mm .
Maybe the new CF version would reach focus with a Coma corrector.
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