Celestron’s SkyMaster Series of large aperture binoculars are a phenomenal value for high performance binoculars. Ideal for astronomical viewing or for terrestrial (land) use, especially over long distances. SkyMaster models feature high quality BaK-4 prisms and multi-coated optics for enhanced contrast. Celestron has designed and engineered the larger SkyMaster models to meet the special demands of extended astronomical or terrestrial viewing sessions.
Objective Lens Diameter: 70mm (2.75″)
Focal Length of Objective Lens: 279.62mm (11″)
Angular Field of View: 2.2°
Linear Field of View (@1000 yds) / @1000 m): 111 ft (38.4 m) @15x
Exit Pupil: 4.7 @15x / 2.0 @35x
Eye Relief: 20.3mm @15x
Close Focus: 73.8 ft (22.5 m)
Interpupillary Distance (max): 72mm (2.83″)
Interpupillary Distance (min): 56mm (2.20″)
Diopter Adjustment Range: -4 to +10
Twilight Factor: 37.41
Relative Brightness: 12.25
Limiting Stellar Magnitude:
Lens Coatings: Multi-Coated
Prism Glass (Type): BaK-4
Prism Coatings: N/A
Weight: 53oz (1503 g)
Environmental Protection: Water Resistant
Nitrogen Filled: No
Tripod Adaptable: Yes
Carrying Case: Nylon
Dimensions: 228mm x 120mm x 300mm (9.0″ x 4.7″ x 11.8″)
Objective Lens Caps
Never look directly at the Sun with the naked eye or with an optic (unless you have the proper solar filter). 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.