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Old 23-03-2015, 10:00 PM
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MattT
Reflecting on Refracting

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Join Date: Jul 2011
Posts: 1,216
The only thing you need to do is measure the internal size of the OTA tube.
Probably 86mm at a guess. GSO, FT, Moonlite etc all make focusers with flanges that size so it's take your pick…how much do you want to spend?
Matt
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