Celestron UpClose 8X40 WA FOV 8.2 Binocular

Description

Celestron UpClose 8X40 WA FOV 8.2
Magnification: 8x
Objective Lens Diameter: 40mm (1.57″)
Angular Field of View: 8.2°
Linear Field of View (@1000 yds) / @1000 m): 429 ft (143 m)
Exit Pupil: 5mm (.19″)
Eye Relief: 12mm (.47″)
Close Focus: 19 ft (6 m)
Interpupillary Distance (max): 72mm (2.83″)
Interpupillary Distance (min): 56mm (2.20″)
Diopter Adjustment Range: TBD
Twilight Factor: 17.89
Relative Brightness: 25
Limiting Stellar Magnitude: Ideal: 10.51
Moderate: 9.51
Poor: 8.51
Lens Coatings: Multi-Coated
Prism Glass (Type): Bk7
Prism Coatings: N/A
Weight: 24 oz (680 g)
Environmental Protection: Water Resistant
Nitrogen Filled: No