The Celestron SkyMaster Pro 20x80 Porro Binoculars are expertly crafted for superior astronomical viewing and observing distant terrestrial objects. These high-performance binoculars are distinguished by their top-quality optics and robust construction, making them an excellent choice for both amateur astronomers and nature enthusiasts. Key Features: Large 80mm Objective Lenses: Exceptional light gathering ability for outstanding performance in low-light conditions and for stargazing. Detachable RSR Rail: Allows for the attachment of an optional red dot finderscope, enhancing ease in locating and focusing on distant celestial or terrestrial targets. Rubber Armored Construction: Ensures improved ergonomics and durable protection against regular field use. Waterproof and Nitrogen Purged: Designed for all-weather reliability, these binoculars prevent internal fogging in varying temperatures and humid conditions. Superior Optical Quality: Features fully multi-coated optics and high-quality BaK-4 prisms, coated with Celestron’s proprietary XLT technology, delivering bright, high-contrast, and sharply detailed images. Built-In Tripod Adapter and RSR Rail: Offers enhanced stability for prolonged viewing and the convenience of attaching a red-dot finder for quick object location. Lightweight and Durable: Crafted from polycarbonate and aluminum, these binoculars are both lightweight for easy handling and rugged for durability. Enhanced 20x Magnification: Ideal for detailed observation of celestial bodies and distant terrestrial subjects, providing an immersive observational experience. The Celestron SkyMaster Pro 20x80 Porro Binoculars combine advanced technical features with user-friendly design, offering an unmatched viewing experience for those who demand both quality and performance in their observational equipment. Specifications GENERAL Magnification: 20x Objective Lens Diameter: 80mm (3.15") Focal Length of Objective Lens: 329.15mm (12.96") Angular Field of View: 3.2° Linear Field of View (@1000 yds) / @1000 m): 168 ft (56 m) Exit Pupil: 4mm (.15") Eye Relief: 15.5mm (.61") Close Focus: 66.2 ft (20.2 m) Interpupillary Distance (max): 72mm (2.83") Interpupillary Distance (min): 56mm (2.20") Diopter Adjustment Range: ±4 Twilight Factor 40 Relative Brightness: 16 Limiting Stellar Magnitude: Ideal: 12.02 | Moderate: 11.02 | Poor: 10.02 Lens Coatings: Fully Multi-Coated - XLT Coatings Prism Glass (Type): BaK-4 Prism Coatings: N/A Weight: 86.4 oz (2449 g) Environmental Protection: Waterproof Nitrogen Filled: Yes Tripod Adaptable: Yes Carrying Case: Deluxe Nylon Dimensions: 330.2mm x 241.3mm x 101.6mm (13" x 9.5" x 4") Included Items: Reflex Sight Rail (RSR)Objective lens capsInterchangeable flared eyecupsRainguardNeck strapLens clothInstruction manual Solar Warning Never look directly at the Sun with the naked eye or with this optic. Permanent and irreversible eye damage may result. Never use your optic to project an image of the Sun onto any surface. Internal heat build-up can damage the optic and any accessories attached to it. Never leave your optic unsupervised. Make sure an adult who is familiar with the correct operating procedures is with your optic at all times, especially when children are present. California Residents WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
