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Posts Made By: Kent Tolley

October 3, 2018 11:29 PM Forum: Antique/Classic/Vintage Optical Instruments

My new insane Cave project

Posted By Kent Tolley

My opinion only: Cave 8" scope, even f/4.5, is pushing the limit of the small Astrola mount with 1" axes.
The additional weight of that guide-scope which is apparently unbalanced and about 7" from the scope centerline further complicates the stability issues faced by this small mount with its heavy and unbalanced payload.
A tube counterweight would help.  See Sam Brown for how to do it.

October 3, 2018 11:42 PM Forum: Antique/Classic/Vintage Optical Instruments

Cave Observatory Scope

Posted By Kent Tolley

That Dr. Paul's 12.5" scope.