Some prototypes in action.
Prototype 1 tested on a refractor.
The RASA 11 with prototype 2.
Not perfect but this RASA was disassembled 2 hours earlier.
Prototype 1 that was on the refractor
Prototype 2 utilizing top mounted push-pull screws.
Parts and pieces.
90mm ring next to a 77mm ring.
A QHY tilt adjuster at bottom of pic.