Steiner Binoculars allow more light through the lenses, which makes for a sharper image and is critically important in low-light military situations. The combination of premium Steiner glass and proprietary lens coatings results in a viewing experience that is second-to-none. All lenses are multicoated, with a variety of specific coatings which enhance light transmission and provide ultimate protection against dirt, dust and all of Mother Nature's element. For absolute fogproof and waterproof protection, Steiner seals 14-psi pressurized dry nitrogen into its optics, for premium clarity in any condition. The Military-Marine binocular is adapted for rugged all-around use. It is light and easy to handle, with bright images and a wide field of view for steady viewing, even on the move. The floating prism system uses flexible silicone lens mount to absorb severe shock, impact and abuse without damage, while the Sports-Auto Focus System lets you focus each eyepiece to your vision once, then keeps images razor sharp from 20 yards to infinity. The Military-Marine features a Markolon housing, a durable polycarbonate with NBR Long Life rubber armoring, creating a lightweight, rugged chassis that withstands 11 Gs of impact. This model has an 8x magnification and a 30mm objective.