COUNTER WEIGHT This Item Includes: Advanced VX Computerized German Equatorial Mount - 40mm 1.25" Eyepiece - 1.25" 90-Degree Mirror Diagonal - Tripod - NexStar Hand Control (EQ) - 2-Year USA Warranty 11" (2800mm) f/10 Schmidt-Cassegrain includes StarBright XLT coatings for betterlight transmission 41% more light gathering than a 9.25" telescope 9x50 optical finderscope for locating alignment stars Integer gear ratios and permanently programmable Periodic Error Correction eliminates recurring track errors from the worm gear.