H2O 10x 42mm Binoculars

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Bushnell's H2O 10x 42 Porro Blue Binocular was designed for sailing the ocean blow, rowing down rolling rivers, or accompanying rafts on languid lakes. The H2O binoculars have an o-ring seal and are nitrogen-purged to provide fogproof and waterproof protection.

When immersed underwater, they remain completely dry on the inside; nor will interior optical surfaces fog during rapid humidity or temperature changes. To add even more aquatic acclimation, a protective rubber armoring has a blue coloring with a soft-textured ridged grip to prevent easy slipping from the hand into the hydrosphere - even when the glasses are wet. The 10x magnification power with a 42mm objective lens offers exceptional viewing for both close-range detail and large-field view scanning. Their comfortable size enables the binocular to remain easy to hold steady, even on a deepwater frigate's deck as it rides the ocean swells.

Premium BAK4 prism glass and multi-coated lenses ensure superior optics that deliver maximum light clarity and transmission. A dioptric ring, twist-off eyecups, and a large center focus knob provide comfortable customizable viewpoints, regardless of external conditions.


  • Wide AAOV of 65.0°
  • Ergonomically designed closed bridge
  • Locking diopter secures the viewers fine-tuned focus
  • BAK4 Porro prisms provide bright, clear, crisp viewing
  • Large center focus knob is fast, accurate, intuitive and easy to access
  • Twist-up eyecups for a comfortable fit with or without eye or sunglasses
  • Non-slip, blue, rubber armor absorbs shock while providing a soft textured rippled grip
  • Nitrogen purged and o-ring sealed for waterproof and fogproof all-climate performance
  • Multi-coated optics on at least one lens surface reduces light loss and glare due to reflection offering a brighter, higher-contrast image
  • Prism Type: Porro
  • Magnification: 10x
  • Objective Lens Diameter: 42mm
  • Angle of View: 6.5°
  • Field-of-View: 341' @ 1000 yd
  • Minimum Focus Distance: 15'
  • Exit Pupil Diameter: 4.2mm
  • Eye Relief: 16mm
  • Focus Type: Center
  • Tripod Mount: No
  • Weight: 27 oz
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