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Re: Is this typical guiding performance for an older g8? RMS around.25 px , 1.0 to 1.6 arc seconds

 

I should add I use a 50 mm guide scope (focal length 207 mm) and I usually get PHD2 DEC backlash estimates of between 0.8 and 2 seconds. Mine is also a 492 system guided by ST4.
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