Celestron Advanced VX 8-Inch GoTo Newtonian Telescope

8 (200mm) f/5 optical design gives excellent wide field views Parabolic primary mirror minimizes spherical aberration to produce a better image Integer gear ratios and permanently programmable Periodic Error Correction eliminates recurring track errors from the worm gear. New motors offer improved tracking performance & provide more power to overcome load imbalances Updated industrial design offers more rigidity, less flexure and improved aesthetics