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Old 16-03-2018, 12:16 AM
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billdan (Bill)
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Join Date: Mar 2012
Location: Narangba, SE QLD
Posts: 1,551
You running a guide scope or an OAG Bart? Could be some sort of flex going on or something moving slightly. Like Mirror shift due to gravity, or the focuser drawtube shifting because of camera weight and gravity, or even cable drag.
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