A 60mm department store refractor started it all....
Quote:Just a comment from a dob owner with a rotating cage. You would need to decide if you want rotating rings or a rotating upper cage...... Pluses and minuss to both with rotating rings you would blow your 100 lb ota budget...... Without alot of machining you would potentially have collimation issues. Check out a thread in ATMs on a 12.5" astro videograph...... concept could be upscalled.Hope you dont mind random comments.
Stellarvue 102ED2 Orion Atlas 11 EQ-G 15" Astrosystems Telekit w/ Discovery Optics 22" F/4 Custom Dobsonian of my own design - See it being built Here Past Lovelies: Oberwerk 20x100 binocs Meade AR5 Meade LX10 8" SCT Vixen ED80SF All sold to a good home