Harpers Photographic

These waterproof binoculars are special! - The fully multi-coated system paired with BaK4 prisms and large oculars ensure superior light transmission and brilliant views of distant objects. These binoculars are especially suited for use at night or in low light conditions due to the large exit pupil that ensures the maximum amount of available light enters the user’s eyes giving the brightest image possible. The binoculars also feature a strong aluminium body with impact-resistant rubber armour covers, which make them especially suitable for use in rugged conditions. The nitrogen-charged and O-ring sealed construction ensure 100% fog and water protection making these binoculars ideal for water sports and marine use.

Specification

Magnification
7x
(Maximum magnification)
Objective
50mm
(Size of objective lens.)
Close Focus
4m
(Minimum distance that the binoculars will focus on)
View 1000m
122m
(Apparent view at 1000m)
Weight
968g
(Weight in grams)
Glass
BAK-4
(Type of glass used in construction)
Exit pupil
7.14mm
(Exit pupil in mm)
Twilight rate
18.7
(Light gathering ability)
Brightness
51.0
(Light transmission factor)
Waterproof
Yes
(Immersion tested 1m for 60sec)
Lens Coating FC
Yes
(Fully coated optics)
Tripod Bush
Yes
(Tripod bush for tripod/adapter)
Dimensions
190x215mm
(Binocular size in mm)
Porro Prism Construction
Yes
(Optical Type)
Integrated Compass
(Built in magnetic compass)
Reticle
Yes
(Reticle measure visible )
Eye Relief
16.7mm
(Eye relief in mm)