HD lens with Twilight Max Light Management System for the power to see at dawn and dusk. Waterproof and fogproof design. BAK4 prisms. Roof prism. Central focus dial. Diopter focus. Lead free lens; fully multi-coated lens; phase coated. Nitrogen filled. Twist up eyecups. Includes Pro Gear accessories: Go Afield shoulder strap, Go Afield case, lens covers and lens cloth.