Pentax SD 10x42mm ED Roof Prism Binoculars Thermoplastic Elastomer Resin Dark Green Compact. They provide minimal glare and ghosting thanks to the application of a full multi-coating process to all lens surfaces and a special coating designed to optimize light transmittance. They are designed with a dependable waterproof body for use in almost all weather conditions. The PENTAX SD 7x42 ED features a large six-millimeter exit pupil making it ideal for astronomical observation Specifications for Pentax SD 10x42mm ED Roof Prism Binoculars: Manufacturer: Pentax Color: Dark Green Magnification: 10 x Objective Lens Diameter: 42 mm Prism System: Roof Eye Relief: 16 mm Exit Pupil: 4.2 mm Field of View Linear: 108 m at 1000 m Optical Coating: full multi-coated Binoculars Focus System: Center Focus Interpupillary Distance: 56 - 78 mm Close Focus: 3 m Water Resistant Mark: 1 m Length: 5.52 in Weight: 23.8 oz Finish: Thermoplastic elastomer resin Condition: New Package Type: Box Width: 136 mm Features of Pentax SD 10x42mm ED Roof Prism Binoculars Bright clear viewing As with PENTAXs top-end Z-series models these new models provide sharp high-contrast images with minimal glare and ghost images thanks to the application of a full multi-coating process to all lens surfaces and a special coating designed to optimize light transmittance. They also feature large 42-millimeter diameter objective lenses to deliver a bright clear view even in unfavorable lighting conditions such as in twilight. The PENTAX SD 7x42 ED features a large six-millimeter exit pupil making it ideal for astronomical observation. ED optical elements As the first PENTAX S-series models to incorporate ED (Extra-low Dispersion) optical elements for effective compensation of chromatic aberration these binoculars deliver a sharp high-contrast blur-free image of the subject. Dependable waterproof construction for use in harsh conditions Thanks to their dependable waterproof construction (equivalent to JIS Class 6 standards for watertight designs submersible to a depth of one meter) these models can be used in almost all weather conditions and can be easily rinsed clean with water. The nitrogen-filled design prevents the interior lens surfaces from fogging caused by sudden temperature changes.These models cannot be used for underwater viewing. Exterior housing made of thermoplastic elastomer resin to improve holding comfort and prevent accidental slippage Easy-to-operate diopter adjustment mechanism with a non-slip ring-type adjuster Extendible eyepieces for effortless shift between in-use and storage positions Easy mounting on a tripod in combination with the optional TP-3 Tripod Adapter Package Contents: Pentax SD 10x42mm ED Roof Prism Binoculars Objective Lens Caps Eyepiece Lens Cap Case Neck Strap Pentax 62894: SD 10x42mm ED Roof Prism Binoculars Dark Green Compact