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I think the discussion has drifted a little from the help request.
I have not been to the observatory for many years but what they require will be a replacement for their old LX200 16" Meade that has given service for many years (since Halley's comet) and now cannot be repaired due to no parts for the electronics system.
It is mounted in the dome on a pier that gives suitable access to the general public to view items through the eyepiece. It did at one time have a C5 telescope as a piggy back that was connected to a Meade 416 CCD. This I assume has long been upgraded but they probably will still need something similar.
I would expect that something in the 16-20 inch planewave area with manual viewing available along with the computerised viewing costing lots of dollars and someone to baby it every viewing night will be required.
I don't know of anyone at the moment who possesses such an instrument for evaluation to help Geoff out.
Barry
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