Does anyone have a 3d printed mirror mask for this telescope?
Mirror Mask - 3d printed for the N20839 - 8 inch mirror?
Telescope Mirror Cleaning
Just sharing my success with what is probably a 'cheats' way of cleaning my 8" GSO Classical Cassegrain primary & secondary mirrors. The larger size of the 8" telescope tube allowed me to get away with it. Instead of the recomme...
Mirror cleaning techniques relevant to telescope mirror mask maintenance.
Officina Stellare RH200 AT reflection rings and how to fix them.
This is a follow-up to my previous thread: https://app.astrobin.com/forum/topic/208401/officina-stellare-rh200-mkii-at/help-with-rh200-halosreflections Quick update for anyone fighting RH200 arcs/reflections. After removing the internal baffle, star ...
Telescope mirror component modifications and fixes applicable to mask design.