Orion 10" f/8 Ritchey Chretien Reflecting OTA Telescope

Orion 10" f/8 Ritchey Chretien Reflecting OTA Telescope

• 10" (250mm) aperture, f/8 Ritchey-Chretien optical tube optimized for astrophotographic use with APS-C and full-frame (35mm) CCD cameras and DSLRs
• Features a big 3.3" rotatable dual-speed (10:1) Crayford focuser equipped with a sturdy linear-bearing to provide fine focus adjustment without slippage or flexure with heavy imaging accessories attached
• Hyperbolic primary and secondary mirrors made of low-expansion quartz glass with enhanced aluminum coatings boast 96% reflectivity for bright imaging performance, and the secondary mirror is precisely center-marked to aid in collimation
• Features two dovetail finder scope bases and a unique, Orion-exclusive slotted wide-format dovetail bar along the top of the telescope for easy attachment of imaging accessories
• Three built-in 1.5" cooling fans accelerate cooling of the primary mirror to reach thermal equilibrium quickly