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Home Telescopes Optical Tube Assemblies SkyWatcher Optical Tubes SkyWatcher Evostar 80 ED DS PRO Refractor Optical Tube Assembly
The new Evostar DS-PRO Series 80 ED Apochromatic refractors from SkyWatcher in their stunning Black-Diamond livery, house premium optics of the same quality and performance level as our now legendary Equinox series, making them superb instruments for both imaging and visual observations. The 80mm is portable yet can provide stunning views of the Planets and brighter deep sky objects due to the premium optics used.Apochromatic Refractors, due to their unobstructed clear aperture show text-book like diffraction patterns, produce the sharpest, highest quality optical imaging available, bar-none, aperture for aperture, of any telescope optical system.
These high-end telescopes all feature a doublet objective lens. One element is made from premium Japanese Ohara FPL-53 Extra-Low Dispersion (ED) glass, which virtually eliminates chromatic aberration to deliver true colour reproduction. Top quality glass is utilized for the Crown element.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. We have published an article explaining the merits of this design, read about ED Doublet refractors.Magnification with Eyepieces Supplied: x21 Highest Practical Power (Potential): x240 Objective Lens Diameter: 80mm Telescope Focal Length: 600mm (f/7.5) Eyepiece Supplied (2"): 28mm LET 2/50.8mm Di-Electric Star Diagonal 9x50 Finderscope Dual-Speed 11:1 2 Crayford Focuser (Backlash-Free) Multi-Coated Objective Lens Supplied with Tube Rings & Mounting Plate Aluminium Carrying Case