Harpers Photographic

A step up from our Ocean Series binocular, the Mariner is designed to work at any time of the day or night and under all weather conditions. Bak4 roof prisms provide superior light transmission while fully multi coating on optics provide an exceptional level of contrast and natural colour reproduction. The Mariner features a built in compass which is fully visible when looking through the instrument. This enables the user to take the bearings of buoys and marks without having to resort to the use of a separate compass. The compass features a red light illuminator which enables the user to use the compass in total darkness with minimal loss of night vision. There is also a range finder reticule built in to the eyepiece which enables the user to calculate the ‘Distance Off’. Long eye relief provides the user with a full field of view with or without glasses, which is made easy by the fold down rubber eyecups fitted as standard. The Mariner is constructed with durable fibreglass reinforced plastic and covered with non-slip rubber armour making it easy hold a grip even in cold or wet environments. The Mariner is supplied with floatation strap and captive lens caps.

Specification

Magnification
7x
(Maximum magnification)
Objective
50mm
(Size of objective lens.)
Close Focus
4m
(Minimum distance that the binoculars will focus on)
View 1000m
133m
(Apparent view at 1000m)
Weight
915g
(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 FMC
Yes
(Fully multicoated optics)
Dimensions
145x215mm
(Binocular size in mm)
Porro Prism Construction
Yes
(Optical Type)
Integrated Compass
Yes
(Built in magnetic compass)
Reticle
Yes
(Reticle measure visible )
Eye Relief
20.0mm
(Eye relief in mm)