Celestron Skymaster Pro ED 15x70 Binocular

{Description}Celestron SkyMaster Pro ED binoculars are the ideal choice for amateur astronomers or anyone who observes at great distances. The SkyMaster Pro ED uses superior optics, coatings, internal parts, and housing materials. With large objective lenses, BaK-4 prisms, ED glass, and fully multi-coated optics utilizing Celestron’s proprietary XLT coating technology, the view through a SkyMaster Pro ED sets the standard for astronomy binoculars.

{Specification}
Magnification: 15x
Objective Lens Diameter: 70mm (2.75")
Focal Length of Objective Lens: TBD
Angular Field of View: 4.4°
Linear Field of View (@1000 yds) / @1000 m): 230 ft (77 m)
Exit Pupil: 4.4mm (.17")
Eye Relief: 15.7mm (.62")
Close Focus: 42.7 ft (13 m)
Interpupillary Distance (max): 72mm (2.83")
Interpupillary Distance (min): 56mm (2.20")
Diopter Adjustment Range: ±3
Twilight Factor 32.4
Relative Brightness: 21.78
Limiting Stellar Magnitude: Ideal: 11.73 | Moderate: 10.73 | Poor: 9.73
Lens Coatings: Fully Multi-Coated - XLT Coatings
Prism Glass (Type): BaK-4
Prism Coatings: N/A
Weight: 73.7 oz (2,089g)
Environmental Protection: Waterproof (IPX7)
Nitrogen Filled: Yes
Tripod Adaptable: Yes
Carrying Case: Deluxe Nylon
Dimensions: 258mm x 220mm x 85mm (10.2" x 8.7" x 3.4")
Included Items: Binoculars
Objective lens caps
Eyepiece Covers
Rainguard
Neck strap
Lens cloth
Non-Silica Dessicant
Case
Instruction manual