RYA1019 Features: * Binoculars * Waterproof to 1m/5 min * Fully multi-coated lenses * Twist-up eyecups * Nitrogen purged * Leather case * Roof prism * Magnification: 8x * Objective lens diameter: 25mm * Exit pupil: 3.13mm * Field of view: 119m * Lumen rating: 9.77 * Twilight rating: 14.14 Construction: * Construction of aluminum Dimensions: * Overall dimensions: 8" H x 8" W x 8" D