Pentax Z-Series Premium ZD 10x50 ED Binocular with Extra-Low Dispersion Lens Green. With Pentax's signature high-resolution HD image quality you will get the most vivid and bright view imaginable that will allow you to fully appreciate nature. These Binoculars by Pentax offer an impressive closed bridge configuration and the magnesium alloy chassis is lightweight yet durable to withstand travel and wear. The Pentax Z-Series 10x50 ED Binocular has aspherical lens elements that enhance the image correction of the binocular. For optimal durability these binoculars are nitrogen filled water and fogproof and are tripod mountable. An angle of view of 50 degrees also ensures that users can get the best view in the house or out in the field. Additionally the Pentax Z-Series 10x50 ED Waterproof Binocular contains phase-corrected BAK4 prisms that deliver high-quality images even in low light environments. Specifications for Pentax Z-Series Premium ZD 10x50 ED Binocular: Manufacturer: Pentax Color: Green Magnification: 10 x Objective Lens Diameter: 50 mm Prism System: Roof Prism Material: BAK4 Eye Relief: 22 mm Exit Pupil: 5 mm Field of View Linear: 26.5 m at 1000 m Field of View Angle: 5 degrees Optical Coating: Protective Coated New Premium level lens Coated Fully Multi-Coated Full-color (Flat) Multi-Coated Binoculars Focus System: Center Focus Twilight Factor: 25 Interpupillary Distance: 58 - 74 mm Close Focus: 6.6 ft Diopter Adjustment Range: -3 - 3 dpt Weather Resistance: Yes Water Resistance Level: Waterproof Length: 6.7 in Weight: 30.2 oz Finish: Green Package Type: Box Additional Features: ED WP Full Size Binocular Included Accessories: Neck Strap Case Eyepiece lens caps Magnification Type: Fixed Features of Pentax Z-Series Premium ZD 10x50 ED 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 ED element (extra-low dispersion glass) Magnesium alloy construction Package Contents: Pentax Z-Series Premium ZD 10x50 ED Binocular Pentax 62703: Z-Series Premium ZD 10x50 ED Binocular with Extra-Low Dispersion Lens Green