Celestron SkyMaster Pro ED 20x80 Porro Binoculars

ED OBJECTIVE LENSES: Extra-Low Dispersion (ED) glass virtually eliminates chromatic aberration or colour fringing, a visual defect common in binoculars, so you can enjoy sharp images with true-to-life colour POWERFUL 20X MAGNIFICATION: These giant astronomy binoculars feature 80mm objective lenses and powerful 20x magnification, for long-distance viewing of land-based subjects or astronomical observing at night XLT LENS COATINGS: All air-to-glass surfaces are multi-coated with Celestron’s proprietary XLT coatings - the same ones we use on our observatory-class telescopes - to maximise the light transmission through the optical path for brighter images THREADED TO ACCEPT ASTRONOMICAL EYEPIECE FILTERS: Add a 1.25" astronomical eyepice filter to each eyepiece to experience game-changing views DURABLE, WATERPROOF BODY: A rubber-armoured, polycarbonate housing protects your binoculars from damage and stands up to the toughest weather conditions. They're also fully waterproof and nitrogen purged to prevent internal fogging of the lenses