The Galileo G-1242WP features 42mm objective lenses and brings images 12 times closer to you than the naked eye. The G-1242WP binocular has BAK4 prisms and fully multi-coated optics for improved glare reduction and increased contrast & clarity. The BAK4 prisms are positioned in a roof prism design making them more compact than other binocular designs. Additionally the G-1242WP is Nitrogen Purged, waterproof and fogproof and features green water resistant comfort grip rubber armoring, twist up eye guards for variable eye relief and full range center focus. Included with the Galileo G-1242WP is a carrying case, neck strap, lens cloth, protective eye caps and attached objective caps that won't get lost. Other specs include a 4.1mm Exit Pupil and a minimum focusing distance of 15′. Linear Field of View is 241' at 1000yds and Angular Field of View of 4.7°. The Galileo G-1242WP 12x42mm Water Proof Binocular Features and Benefits: Nitrogen Purged Fog and Water Proof Design Comfort Grip Rubber Armoring Full Range Center Focus Twist Up Rubber Eye Guards Eye Caps and Attached Objective Caps Carrying Case Neck Strap Lens Cloth Limited Lifetime Warranty The Galileo G-1242WP 12x42mm Water Proof Binocular Specifications: 12x Power 42mm Objective Lenses BAK4 Prisms Fully Multi-Coated Optics Linear Field of View: 241′ @ 1000yds Angular Field of View: 4.7° Minimum Focus Distance: 16.5′ Exit Pupil Size: 3.4mm Eye Relief: approx. 12.5mm Interpupillary Distance: 57mm to 75mm