Pentax Z-Series Premium ZD 8x43mm Roof Prism WP Binocular Green. These Binoculars from the pioneers at Pentax feature multi-layer coatings that increase optical brightness for the best viewing trip. Nitrogen-filled the Pentax Premium Binocular is waterproof to take you anywhere and any place in any weather condition. For the dedicated outdoors enthusiast count on the Pentax ZD 8x43 Binocular for the most demanding experiences. Specifications for Pentax Z-Series Premium ZD 8x43 Binocular: Manufacturer: Pentax Color: Green Magnification: 8 x Objective Lens Diameter: 43 mm Prism System: Roof Prism Material: BAK4 Eye Relief: 22 mm Exit Pupil: 5.4 mm Field of View Linear: 33.5 m at 1000 m Field of View Angle: 6.3 degrees Optical Coating: Fully Multi-Coated New Premium level lens Coated Protective Coated Binoculars Focus System: Center Focus Twilight Factor: 28.9 Interpupillary Distance: 58 - 74 mm Close Focus: 6.6 ft Diopter Adjustment Range: -3 - 3 dpt Weather Resistance: Yes Water Resistance Level: Waterproof Length: 5.7 in Weight: 25.2 oz Finish: Green Package Type: Box Additional Features: WP Full Size Binocular Included Accessories: Eyepiece lens caps Neck Strap Case Magnification Type: Fixed Features of Pentax Z-Series Premium ZD 8x43 Binocular New fully multi-coated optics New enhanced light transmission coatings Phase correction Protective lens coating Waterproof nitrogen-fi lled and unique hydrophobic coating Hybrid aspherical lens element Magnesium alloy construction Package Contents: Pentax Z-Series Premium ZD 8x43 Binocular Pentax 62721: Z-Series Premium ZD 8x43 WP Binocular Green