Opticron Adventurer T WP 12x50 Black 12x50. Waterproof and finished in a stylish leatherette-look rubber armor it offers a serious alternative to roof prism binoculars in its price range. Specifications for Opticron Adventurer T WP 12x50 Binocular: Manufacturer: Opticron Color: Black Magnification: 12 x Objective Lens Diameter: 50 mm Prism System: Porro Prism Material: BAK4 Eye Relief: 15 mm Field of View Linear: 285 ft at 1000 yds Field of View Angle: 5.4 degrees Close Focus: 7 m Water Resistance Level: Waterproof Length: 169 mm Weight: 27 oz Finish: Aluminium Alloy Polycarbonate Magnification Type: Fixed Eyecups Types: Fold Package Contents: Opticron Adventurer T WP 12x50 Binocular Opticron 30690: Adventurer T WP 12x50 Black 12x50