Pentax S-Series Superior SP 20x60 WP Full Size Binocular Black. Treated with premium multi-layer coatings these Pentax Binoculars guarantee maximum light transmission that produces the brightest and most vivid images possible. Every pair of these Pentax SP 20x60mm Waterproof Binoculars is waterproof and nitrogen-filled to provide JIS Class 6 protection from the elements allowing them to handle harsh climate conditions and be submersed up to 1m deep. The large objective lens gathers an abundance of light to ensure you can see in darker conditions and the generous eye relief is a benefit to outdoorsmen of all experience levels. You can use these specs confidently in any environment knowing their tough body construction can handle anything that comes their way. Use these Pentax SP 20x60 WP BAK-4 Prism Binoculars to clearly spot your next target on a adventure. Specifications for Pentax S-Series Superior SP 20x60mm WP Full Size Porro Prism Binoculars: Manufacturer: Pentax Color: Black Magnification: 20 x Objective Lens Diameter: 60 mm Prism System: Porro Prism Material: BAK4 Eye Relief: 21 mm Exit Pupil: 3 mm Field of View Linear: 11.7 m at 1000 m Field of View Angle: 2.2 degrees Optical Coating: Protective Coated full multi-coated Binoculars Focus System: Center Focus Twilight Factor: 9 Interpupillary Distance: 57 - 72 mm Close Focus: 26.2 ft Diopter Adjustment Range: -4 - 4 dpt Weather Resistance: Yes Water Resistance Level: Waterproof Length: 8.8 in Weight: 49.4 oz Finish: Black Package Type: Box Additional Features: WP Full Size Binocular Included Accessories: Eyepiece lens caps Neck Strap Case Magnification Type: Fixed Features of Pentax S-Series Superior SP 20x60 WP Full Size Binoculars New fully multi-coated optics Phase correction Protective lens coating Waterproof Nitrogen purged Unique hydrophobic coating Aspherical lens elements Magnesium alloy construction Package Contents: Pentax S-Series Superior SP 20x60 WP Full Size Binoculars Pentax 65874: S-Series Superior SP 20x60 WP Full Size Binocular Black