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.
Optical Design : PorroDiameter : 63 mm (2.48 in)Magnification : 9 xAngular Field of View : 5 DegreesLinear Field of View (at 1000 yds) : 262 ft (79.86 m)Exit Pupil : 7 mm (0.28 in)Eye Relief : 17 mm (0.67 in)IPD Min : 58 mm (2.28 in)IPD Max : 72 mm (2.83 in)Near Focus (Binoculars) : 35 ft (10.67 m)Prisms : BAK-4Optical Coatings : Fully Multi-CoatedCaps : YesStrap : YesWeather Proof : WaterproofTripod Adaptable : YesWeight : 44 oz (1247.38 g)