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Old 16-08-2019, 07:19 PM
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The_bluester (Paul)
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The_bluester is offline
Join Date: Feb 2011
Location: Kilmore, Australia
Posts: 2,686
The RASA looks to have a push pull screw system and really the only collimatable part is the tilt of the lens group in the middle of the corrector, apart from the F2 factor it should not be much harder to collimate than an SCT.

The Sharpstar looks to be a standard sort of newt arrangement, aside from having a one part CNC milled secondary holder. You would hope the threads on the secondary adjustment screws were a nice fine pitch.

Last edited by The_bluester; 16-08-2019 at 08:51 PM.
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