Guan Sheng Optical (GSO) of Taiwan manufactures primary mirrors, RC astrographs and Dobsonian OTAs that are re?branded worldwide. Their parabolic mirrors power many DIY telescopes built by Indian amateurs. Mirror sets up to 20?inch are available, empowering Indian ATM builders tackling large?aperture projects.
Yes, most ship with an interferometry report showing- 1-12 wave RMS.
They have an M90 × 1 thread for the stock linear bearing Crayford or optional motor focuser.
The secondary has a central Phillips screw and the primary uses three spring-loaded knobs, so no special tools are required.
Showing 1 - 4 of results
This website uses cookies to ensure you get the best experience. By continuing to browse, you agree to our use of cookies. Learn more
