Waterproof and Fogproof, Roof Prism, 6.7° Angle of View, Center Focus
Our Price $429.00

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The Pentax 7x50 Marine Binocular is that rarest of breeds, a centre focusing 7x50 unit with an internal compass and reticle.  Most of the 7x50 boating binoculars are porro prism models with individual focusing.  Many users prefer the roof prism configuration because of the identical barrel spacing to one's eye, and nearly all would choose centre focusing over individual focusing if they had the choice.

The 7x50 Marine has an internal compass that uses LED illumination, the most battery-efficient of all, to display its readings.  There's also a rangefinding reticle scale, which aids your estimations of the distances of other boats ( when their approximate height is already known ).  The 7x50 Marine is meant for use on water, built to withstand the elements and protected by Pentax's fine "Worry Free" warranty in any case.

Key Features

  • Ideal magnification and objective size for use upon water, combined with comfortable roof prism/centre focus design
  • Waterproof/fogproof nitrogen filled body meets JIS Class 6 weatherproofing standard ( resists ingress from powerful water jets propelled at any angle )
  • Phase-coated BaK-4 roof prisms & fully multicoated lens elements
  • Hydrophobic ( water-shedding ) external coating on eyepieces and objectives
  • Internal compass with efficient LED illumination
  • Built-in rangefinding reticle aids in distance estimations
  • ±3 Click-stop dioptric correction ( upon right objective barrel )
  • 56-73mm Interpupillary distance adjustment range
  • Pentax "Worry Free" Warranty repairs/replaces damaged binocular for original purchaser for $19.95


Prism TypeRoof
Objective Lens Diameter50mm
Angle of View6.7°
Field-of-View350' @ 1000 yd / 116.20 m @ 1000 m
Minimum Focus Distance9.84' / 3 m
Exit Pupil Diameter7.1  mm
Eye Relief18  mm
Interpupillary Adjustment56 - 73 mm / 2.20 - 2.87"
Dioptric CorrectionNot Specified By Manufacturer
Focus TypeCentre
Tripod MountNot Specified By Manufacturer
DimensionsNot Specified By Manufacturer
WeightNot Specified By Manufacturer
Pentax 7x50 Marine Binocular with LED Compass & Rangefinding Reticle
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