The PROSTAFF 5 binocular range is perfect for people who are using fully waterproof binoculars for the first time for nature observation and other outdoor activities.Multilayer-coated lenses for brighter images - Multilayer coatings, which provide higher light transmittance across the entire visible light spectrum, are applied to the lens and prism surfaces that transmit light. This minimises the loss of light due to reflection, thereby ensuring a more natural, clearer view.Lightweight and Durable Body - Thanks to a fiberglass-reinforced polycarbonate resin, the PROSTAFF 5 is light enough to take anywhere and strong enough to be trusted on even the more extreme adventures.Enjoy Comfortable Viewing - Nikon has manufactured the PROSTAFF 5 binoculars, as well as many other of its optics, with a high-eyepoint design. This provides a clear field of view for everyone, even when the user is wearing eyeglasses, with sufficient space between the users eye and the eyepiece lens.Uses Eco-glass optics that are free of lead and arsenic for all lenses and prisms.The PROSTAFF 5 range is most suitable for:- Outdoors, camping and hiking- Birdwatching and nature watching- Marine sports and fishing- Spectator sports- For eyeglass wearers