Celestron Skymaster 15x70 Binocular

{Description}15x magnification porro prism binocular
Large 70 mm objective lens offers maximum image brightness in low-light and long-range conditions
Ultra sharp focus across the field of view
Multi-Coated optics for sharp, clear views
Suitable for terrestrial or astronomical viewing
Protective rubber covering for ultra-firm grip
Large center focus knob for easy focusing
Tripod adapter included
Long eye relief ideal for eyeglass wearers
Carrying case included for travel and safe storage


{Specification}
Magnification
15x
Objective Lens Diameter
70mm (2.75")
Angular Field of View
4.4°
Linear Field of View (@1000 yds) / @1000 m)
231 ft (77 m)
Exit Pupil
4.7mm (.18")
Eye Relief
18mm (.71")
Close Focus
43 ft (13 m)
Interpupillary Distance (max)
72mm (2.83")
Interpupillary Distance (min)
56mm (2.20")
Diopter Adjustment Range
-4 to +8
Twilight Factor
32.4
Relative Brightness
22.09
Lens Coatings
Multi-Coated
Prism Glass (Type)
BaK-4
Prism Coatings
N/A
Weight
48 oz (1361 g)
Environmental Protection
Water Resistant
Nitrogen Filled
No
Tripod Adaptable
Yes
Carrying Case
Nylon
Dimensions
220mm x 110mm x 280mm (8.7" x 4.3" x 11.0")
Included Accessories
Tripod Adapter with Finder Rail| Objective Lens Caps| Rainguard| Neck Strap| Lens Cloth| Instruction Manual