Quote:
Originally Posted by Juno
Would you have any idea of the optical quality of the 10" Guan sheng GS-880 ASDX? I saw it advertised by Andrews for $799 and was wondering how the scopes mirror performs on planets and deepsky objects.
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Optically they are OK, but don't expect 1/50th wave RMS for eight hundred bucks....
....but mechanically they are not great, you will have to replace the focuser with a feather touch or similar for imaging applications, which will add to the cost.