80ED EQ3D Monocular Telescope SynScan Black Diamond ED Apochromatic Refractor Tube 2" Dual Speed Focuser (Includes tripod) vision

Telescope Tube Attachment Hardware：The optical tube comes with attachment hardware that allows it to be securely fastened to any Sky-Watcher mount. The quick-release tube rings provided with Black 80 ED space telescope adults are cast-aluminium， painted white. Metallic High-Transmission Lens Coatings ：Each air-to-glass lens surface has exotic anti-reflection metallic coatings applied to ensure optimum light through-put of approaching 99.5%. The proprietary Sky-Watcher “Metallic High-Transmission Coatings” (MHC) are the finest photon anti-rejection coatings in their class. Tube Materials：The optical tube material is rolled steel， powder-coated reflective gloss black with gold fleck accent. The front and back cells are cast-aluminum painted white， or black. Precision 2” Dual Speed Crayford Focuser as Standard：Optical focus is achieved by means of a mechanically ultra-smooth， backlash-free， precision 2” Dual Speed Crayford Focuser-assembly. This focuser offers fine and ultra-fine focusing adjustments. Light-Baffled Optical Systems：The objective lens cell is light-baffled to reject stray， unfocused light. The draw tube is likewise baffled to insure optimum contrast. The tube interior is flat blackened to help prevent unfocused internal light reflections from reaching the focal plane.