The Sky-Watcher 80/600 Evostar ED Doublet Refractor OTA is a refractor telescope that well designed for wide-field astronomical observation of prominent nebulae, star clusters, and galaxies from a dark-sky location. Come with focal ratio f/7.5, it can be used as an astrograph for sky photography or telephoto lens. The Ultra high contrast of this Sky-Watcher ED Refractor allows the subtlest of details to be easily scrutinized under conditions of good seeing.
Metallic high-transmission Lens Coatings (MHC) Each air-to-glass lens surface has been coated by Sky-Watcher’s proprietary MHC. An anti-reflection metallic coatings ensure optimum light transmission approaching 99.5%.
Light-Baffled Optical Systems The objective lens cell of this 80/600 Evostar ED Doublet OTA is light-baffled to reduce stray & unfocused light to insure optimum contrast. The interior of the tube is flat blackened to prevent unfocused internal light reflections from reaching the focal plane.
Precision 2” Crayford Focuser This precision 2″CrayfordFocuser is mechanically ultra-smooth and backlash-free and offers you a fine and ultra-fine focusing adjustment.
Tube Materials The optical tube material is rolled steel, powder-coated reflective gloss black with a gold fleck accent. The front and back cells are cast aluminium painted white & black.
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 Evostar ED80 are cast aluminum, painted white.