Re: Advice for someone considering purchasing a well used AP900GTO
If the knobs are silver they could be the locks for the dovetail for taking the mount into two halves. Those need to be tight. "Always take the high road. There's less traffic." Observatory Engineer Summit Kinetics Waikoloa, Hawaii
On Tue, Apr 12, 2022 at 10:36 AM Emilio J. Robau, P.E. <ejr@...> wrote: Thanks Roland. I have them snug but not tight.
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