Fully multi-coated optics  10x Magnification  Diameter: 42mm  Ergonomic design- roof prism structure  Waterproof, fogproof and nitrogen purged  Large focus knob  Twist up eye cups for more comfortable viewing  Tripod compatible The perfect binocular for beginners and outdoor enthusiasts looking for a solid, multipurpose accessory for their travels. The PRAKTICA Discovery Series roof prism design and fully multi-coated optics deliver crystal clear images at an affordable price. Built with a durable rubber body, these waterproof, fogproof and nitrogen purged binoculars can survive all conditions. Whether you are a birdwatcher, sports fan or traveller you can be assured that these binoculars will last a lifetime. Additional features such as twist up eye cups allow for easy eye-relief adjustment for eyeglass and non-eyeglass wearers and semi-attached objective lens caps ensure you never have to worry about protecting your lenses again. The Discovery Series binoculars are tripod-adaptable and include a neckstrap, lens cloth, protective carry case and a 25 year limited warranty. Ideal for: Bird Watching Spectator Sports Hiking Sightseeing Nature & Wildlife Safari & Travel Cruise Ship Holidays  Fully multi-coated optics - bright, crisp details with impressive resolution  Ergonomic design- roof prism structure  Wide field of view – follow your subject with ease without having to alter the position of your binoculars  Waterproof, fogproof and nitrogen purged – allows for use in all weather conditions  Large focus knob- helps you bring your subject into sharp focus quickly  Twist up eye cups- easily adjustable for more comfortable viewing for eyeglass and non-eyeglass wearers  Tripod compatible – attach your binoculars to a tripod with the PRAKTICA Tripod Adapter for extended viewing sessions Specifications Magnification: 10 Diameter (MM): 42 Prism system: Roof Prism glass: BAK4 Focus system: Centre F.O.V FT/1000YDS: 315 F.O.V M/1000M: 105 Angular F.O.V (degrees): 6.0 Exit Pupil (MM): 4.2 Exit Relief (MM): 16 Min. focusing dist. (M): 5.0 IPD Min-Max (MM): 58-73 Eye cup: Twist up Water/Fog proof: IPX6 Adapt to tripod: Yes Dimensions (CM): 15.5x12.7x5.3cm