Bushnell H2O 8x25mm Roof WP/FP Binocular Dark Blue. These Binoculars developed by Binoculars from Bushnell feature multi-coated OPTIMA weather-resistant roof prism lenses that produce crystal clear images and the BaK-4 prism glass provides enhanced brightness color and contrast. The housing of this Bushnell H2O 8x25mm Waterproof/Fogproof Adventure Binocular is O-ring sealed and nitrogen purged to create a fully waterproof and fogproof device. You can use these binoculars in harsh weather conditions since they are O-ring sealed and nitrogen purged for complete waterproof and fogproof performance. A large center-focus knob assists with easy customization of your viewing experience and you'll get lengthy eye relief for a clear detailed view with each use. Grab a pair of these Bushnell H2O 8x25mm Roof Waterproof/Fogproof Binoculars to get the same gorgeous views from land or water. Specifications for Bushnell H2O 8x25mm Roof Prism WP/FP Binocular: Manufacturer: Bushnell Color: Dark Blue Magnification: 8 x Objective Lens Diameter: 25 mm Prism System: Roof Prism Material: BAK-4 Eye Relief: 13.5 mm Exit Pupil: 3.2 mm Field of View Linear: 114 m at 1000 m Optical Coating: Multi-Coated Binoculars Focus System: Center Focus Close Focus: 4.6 m Water Resistance Level: Waterproof Length: 4 in Weight: 10.23 oz Magnification Type: Fixed Fogproof: Yes Features BaK-4 prisms for bright clear crisp viewing Multi-coated optics for superior light transmission 100percent waterproof: O-ring sealed and nitrogen purged for reliable fog-free performance Non-slip rubber armor absorbs shock while providing a firm grip Twist-up eyecups Large center-focus knob for easy adjustments Longer eye relief Package Contents: Bushnell H2O 8x25mm Roof Prism WP/FP Binocular Bushnell 138005R: H2O 8x25mm Roof WP/FP Binocular Dark Blue