This is the Braun Compagno 10x42 Waterproof Binocular [BNBL20005] The Braun Compagno 10x42 Waterproof Binoculars have a highly topical design which distinguish themselves with an excellent optical quality. These are fog proof using Nitrogen filling. Features: Specification: Magnification: 10x Lens diameter: 42 mm Prism: Proof BAK 4 Lens coating: complete multilayer coating Field of view: 6.1°, 106 m/1000 m Focusing: Zentral Exit pupil: 4.2 mm Eye relief: 16.1 mm Close focus distance: 4 m Dioptre adjustment: -4/+4 Interpupillary distance: 56 - 74 mm Waterproof (max. depth/time): 0.5 m/15 min. Nitrogen filled: yes Thread for tripod: yes Dimensions (approx.): 146 x 135 x 55 mm Weight (approx.): 550 g Contents: Binoculars Ever-ready case Carrying strap Cleaning cloth Manual ...Contact us if you need more help.