Overview Large objective lens elements provide maximum light gathering capabilities and are perfect for use in low light conditions. Premium multi-layer coating assures the maximum light transmission through the binocular. The result is bright, crisp, true-to-life images in the widest range of viewing conditions. Rigid body construction makes these binoculars extremely rugged to maintain optical alignment. This ensures comfortable viewing throughout the life of the product. Waterproof and nitrogen-filled (JIS Class 6) to handle the most extreme weather conditions (submersible to 1m). This series consists of four high-performance, waterproof models: the SP 8x40 WP, with 40mm objective lenses, the SP 10x50 WP and SP 12x50 WP with 50mm objective lenses, and the SP 20x60 WP with extra-large 60mm objective lenses. Description Large objective lenses incorporated in the design allow for contrast-rich, bright viewing under all light conditions. Specifications Type Porro-prism centre focusing (built-in focusing arm) Model No. 65871 - SP 8x40 WP Model No. 65872 - SP 10x50 WP Model No. 65873 - SP 12x50 WP Model No. 65874 - SP 20x60 WP Eye Relief 20 mm Magnification 8x Objective Lens Diameter 40 mm Real Field of View 6.3 º Field of view at 1000m 110 m Field of view at 1000 yards 330 ft. Exit Pupil 5.0 mm Relative Brightness 25 Diopter Adjustment Right diopter ring (click diopter adjustment) Diopter Adjustment Range ±2m-1 Eye Width Adjustment Range 57 to 72 mm / 2.2 to 2.8 inches Focusing Range 3.5 m to infinity / 11.5ft. to Infinity Eyepiece Ring Helicoid type (3 click atop) Height & Width 136 x 178 mm / 5.2 inches x 7.0 inches Thickness 76 mm / 3.0 inches Notes Waterproof 1m in depth of water (JIS class 6), Nitrogen filled Body Color Black Apparent Field of View 48º Weight 900g / 31.7 oz. Lens Construction (Objective lens / Eyepiece lens) 2 elements - 1 group / 3 elements - 2 groups
