Celestron C-8 A StarBright XLT 8-inch Schmidt Cassegrain Optical Tube Assembly 25mm 1.25" Eyepiece - 6x30mm Finderscope - 1.25" Star Diagonal and Visual Back - Dovetail Slide Bar - 2-Year Warranty Celestron C8-A, 8&quot; Schmidt-Cassegrain Optical Tube Assembly to fit CGE Mounts - Starbright XLT Coatings