Orion 10″ f/8 Ritchey Chretien Reflecting OTA Telescope For Sale

Orion 10″ f/8 Ritchey Chretien Reflecting OTA Telescope

• 10-Inch (250 mm) aperture, f/8 Ritchey Chretien optical tube optimized for astrophotographic use with APS-C and full-frame (35 mm) CCD cameras and DSLRs
• Features a big 3.3-Inch 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-Inch cooling fans accelerate cooling of the primary mirror to reach thermal equilibrium quickly

• Orion 10″ f/8 Ritchey-Chrétien Astrograph Telescope with 3.3″ dual-speed linear-bearing Crayford focuser
• Extension tube, 2″ length (x1)
• Extension tube, 1″ length (x2)
• Battery holder for eight AA batteries (batteries not included)
• Starry Night SE astronomy software digital download insert