Nikon Prostaff 3S Binoculars are perfect for those looking for rugged-yet-portable optics worthy of any adventure. Multilayer coatings, which provide higher light transmittance across the entire visible light spectrum, are applied to the lens and prisms surfaces that transmit light. This minimizes the loss of light due to reflection, thereby ensuring a more natural, clearer view. The Prostaff 3S Binoculars also have a high-reflectivity silver-alloy mirror coating applied on the mirror surfaces of the prisms for a bright and clear view. A high-eyepoint design provides long eye relief without vignetting. This setup gives the user a clear field of view, even when the user is wearing eyeglasses.
O-ring sealed and nitrogen gas-filled, the Prostaff 3S gives you complete waterproof (up to 33' for 10 minutes) and fogproof performance. The lead- and arsenic-free Ecoglass is used for all lenses and prisms. Notably compact and lightweight, the Prostaff 3S implements maximum portability thanks to its fiberglass-reinforced polycarbonate resin. Turn-and-slide rubber eyecups with multi-click facilitate easy positioning of eyes at the correct eyepoint. These binoculars are designed with rubber armoring for shock-resistance and a firm, comfortable grip. Nikon No-Fault Repair/Replacement Policy and limited lifetime warranty. Dimensions: 5.9"L x 5.1"W.