Bushnell H2O Waterproof binoculars series are just that: completely waterproof and fog proof. They are made for tough outdoor conditions where things can get wet like on a boat, kayaking, or even high humidity environmenst such as a rainforest.
The Busnell H2O Waterproof/Fogproof binoculars are “wrapped” in a non-slip rubber that can absorb shock while providing safe grip and handling. The Tubes are O-ring sealed and nitrogen filled to keep water out and prevent condensation of moisture even when going through extreme temperature fluctuations.
The Bushnell H2O 10×42 looks good and well made, it feels robust and lyes comfortable in the hand. The rubber coated exterior provides good grip even with wet hands or with gloves. It should also provide adequate protection if the binoculars are dropped accidentally from not to great hights.
The instruments 10x magnification provides images which are detailed and rich in contrast, only near the edge of the lens is a slight drop in performance to notice. The objective lens with 42 mm aperture in combination with the BAK 4 multicoated roof prisms guaranty optimum light transmission and enough twilight performance to allow the binoculars still to be used in low light conditions during dusk or dawn. A field of view of with 114 m to 1,000 m is within the normal range of binoculars of those specs.
The eyecups are made of soft rubber are rotatable and the focus works flawlessly. The eye-to-eye distance is 17mm, so wearers of glasses can use the Bushnell H2O 10×42 without restrictions. Another positive feature is the weight, which is relatively low at 765 g for binoculars of this format.
Bushnell guarantees the binoculars having a hermetically sealed housing. Special O-rings and a nitrogen filling make the instrument completely waterproof and even being submerged in water would not allow water to enter. Fogging and condensation is supposedly not an issue with this model.
No many accessories, a carry case only.
There have been occasional complaints about lenses fogging up despite nitrogen filling.
If you going to use your binoculars on a boat or where exposure to water is frequent, the Bushnell H2O Waterproof/Fogproof Roof Prism Binoculars will serve you well. Their O-ring sealed and nitrogen purged tubes provide troublefree viewing even in humid or wet conditions.
Overall, if you are looking for an affordable pair of waterproof binoculars the Bushnell H2O Waterproof/Fogproof binoculars are a good option. For the occasional user, they are fine, but if you demand high image resolution and high light transmission you might need to resort premium binoculars.