Technical specifications for CELESTRON Nature DX ED 8 x 42 mm Binoculars – Black
OVERVIEW
Type: Binoculars
Magnification: 8 x
Objective lens diameter: 42 mm
Prism system: Roof
Suitable for: – Bird watching- Outdoor adventures- Sports- Travel
OPTICAL FEATURES
Angle of view: Actual: 7.5°
Field of view at 1000 yds: 393 ft (129 m)
Dioptre: -3 / +3
Close focussing distance: 2 m
Exit pupil: 5.25 mm
Relative brightness: 27.56
CONSTRUCTION
Eyecups: Twist up
Waterproof: Yes
Coated optics: Multilayer-coated optics
Eye relief: 17.8 mm
Interpupillary distance: 74 mm
Tripod adaptable: Yes
Other features: – Extra-low dispersion (ED) objective lens- Prism glass: Phase coated BaK-4- Twilight factor: 18.33- Nitrogen filled
Weatherproof: Yes