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Bushnell H2O 10x42 Porro

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Bushnell H2O 10x42 Porro Details

Binoculars Bushnell H2O 10x42 Porro are made for details observation in extreme, wet conditions. You can observe nature and birds either if you stand in swamp or river. Thanks to rubber armoured housing, Binoculars would not slip from wet hands.

About Bushnell H2O Binoculars

The H2O series from Bushnell is a diverse collection of binoculars that includes a wide choice of both Roof and Porro prism models. As the name suggests, this is designed with water in mind and by that I mean they are tailored to either accompany you on the water in a boat, yacht or ship or be the instrument you can trust when out in the field and the weather turns nasty. 
In terms of their standing, this largely a value-priced range and will appeal to those shopping on a relatively tight budget, but require a good level of performance.

Important Features 

As you would expect on a series designed to be used around water, all Bushnell H2O binoculars are naturally fully O-ring sealed and thus waterproof. These seals are also important in dry conditions, preventing dust from getting into the system. What is more, the air inside has been replaced with nitrogen to protect the internal glass surfaces from fogging. 
A defining feature on all H2O binoculars is the distinctive armour on the exterior of the housing. Not only for the protection of the optics that it covers, this highly textured soft rubber presents you with a very high grip surface to securely hold onto even wet, with or without gloves on. 
All models within the H2O series come with a centrally positioned, easy to reach, focus wheel, diopter adjustment, and twist-up eyecups to ensure they can be perfectly calibrated to your particular needs.

Optical Properties

The H2O binoculars are Multi-Coated which means that most, but not all the glass surfaces have a special anti-reflection material applied to them. This is usually the outer objective and eyepiece lenses that are coated and helps them transmit more light than untreated glass for a brighter and better quality view. However, it is important to note that whilst they cost more, higher-end binoculars like those in the Bushnell Marine series are Fully Multi-Coated meaning that every surface throughout the whole pathway is treated for an even brighter and higher quality image. 
With either Roof or Porro prism models to choose from, all are made from good quality BaK-4 optical glass.


Depending on the exact model, but most Bushnell H2O binoculars come supplied with a soft carry case, padded neck strap, cleaning cloth and protective objective lens and eyepiece covers.

Features of Bushnell H2O Binoculars

  • Both Roof & Porro Prism Models
  • Designed for Marine / Wet conditions
  • O-ring Sealed & Fully Waterproof 
  • Fog proof (Nitrogen Purged)
  • High Grip Soft Texture Exterior Coating
  • Multi-Coated Optics
  • BaK-4 Roof Prisms
  • Twist-Up Eyecups with intermediate stops
  • Right Eye Diopter Adjustment
  • Central Focus Wheel

Accessories of Bushnell H2O Binoculars

  • Carry Case
  • Neck Strap
  • Objective Lens Covers
  • Rainguard
  • Lens Cleaning Cloth

Warranty Terms and Conditions

All H2O binoculars are covered by the Bushnell standard 30-year warranty.

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Bushnell H2O 10x42 Porro Specifications

Binoculars seriesBushnell H2O
Made inChina
In production since
Warranty1 year
Prism type Porro
Variable magnification No
Magnification. 10x
Diopter range
Lens diameter. 42mm
Exit pupil. 4.2mm
Field of view... 115m/1000m
Field of view (deg.). 7.3943°
Apparent field of view (deg.).
Eye relief. 18.188mm
Close focus. 5.1488m
Twilight Factor 20.49
Light transmission
Relative Brightness 17.6
Lens coating Multicoated
Temperature range
Filled with Nitrogen
Focusing system Central
Diopter setting positionRight eye-piece
Body typeSingle hinge
Waterproof Yes
Fogproof Yes
Tripod adaptableNo
Compass No
Built-in rangefinderNo
Image stabilizer No
Floatable No


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Reviews & Testimonials

Reviews for Bushnell H2O 10x42 Porro

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Sprejemljiv daljnogled za povprecno uporabo in začetnike, za zahtevne uporabnike bi priporočal kaj boljšega. Kolimacija je na mojem primerku dobra. Ostrina in prepustnost svetlobe na sprejemljivem nivoju, nekaj malega je prisotnih popačenj, sprejemljiva je tudi barvna napaka. Zorni kot je nekoliko manjši kot v specifikacijah. Če ni prehudo dodati še nekaj evrov je npr. Nikon Action Extreme 10x50 boljša izbira.


Acceptable binoculars for average use and beginners, although I would recommend something better for demanding users. Collimation in my case is good. Sharpness, light transmission and colour error are at an acceptable level, a little distortion is present. Field of view (viewing angle) is slightly smaller than in the specifications. If it is not too much to add a few euros, the Nikon Action Extreme 10x50 for example is better choice.

(Posted on 12/11/2016)

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