I might just add that the strength of your focuser is very important if your running inverted, as the camera and filter wheel (if used), puts some pull effect on the focuser draw tube. The 10" carbon strut newt i built used a GSO R&P in the inverted configuration, and it was fine. The manual Moonlights are ok but they are way beyond stock quality. Finally, if you are using auto focus equipment, and applications, obviously you cannot lock the draw tube; so pay attention to the weight handling specs for the auto focus equipment (it's not just lifting capacity, but pull resistance when inverted).
Last edited by glend; 30-01-2022 at 09:22 PM.
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