Thread: Opinion on GSO/Bintel BT200 CF astrograph
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Old 20-05-2013, 10:56 PM
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LewisM
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Opinion on GSO/Bintel BT200 CF astrograph
Looking for opinions of the GSO/Bintel f/4 BT200 CF tube astrograph - pros and cons. Mirror quality (shape etc), collimation holding, baffling etc.

It's going to be either that, or a 2nd hand Vixen R200SS.
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