GSO 12" f/8 RITCHEY-CHRETIEN CARBON TRUSS OTA ED and knee yourself to center

and knee yourself to center the right star pattern for your hemisphere in its too-small field of view

The D2 line at 5890Å is brighter than both Calcium and even Hydrogen Alpha

Optical thickness 12 mm without adapters SKU QHY-OAG-M-PRO

Pictured is an ASI2600MM Pro camera and the assembled adapter

Optical thickness 8

GSO 12" f/8 RITCHEY-CHRETIEN CARBON TRUSS OTA ED and knee yourself to centerThe Ritchey Chrtien telescope is the most popular optical design used by professional astronomers and astroimagers all over the world. The Hubble Space Telescope itself uses the RC configuration. All new GSO RC telescopes now come with an upgraded focuser allowing you to connect the ZWO & QHY EAF focusers without additional modification. The Guan Sheng Optical RC's are excellent astrographs with solid build quality and precisely figured optical