Specifications
Objective Lens Diameter (mm)
70 mm
Magnification (x)
25x
Apparent Field of View
2.7°
Exit Pupil (mm)
2.8 mm
Eye Relief (mm)
13 mm
Close Focus
75 ft (23 m)
IPD Max
72 mm
IPD Min
56 mm
Optical Coatings
Multi-Coated
Weight (oz)
52 oz (1474 g)
Prism Glass (Type)
BaK-4
Twilight Factor
41.83
Relative Brightness
7.84
http://www.celestron.com/browse-shop/astronomy/astronomy-binoculars/skymaster-25x70-binocular