Kite Optics 8X30 Monocular. The instrument comes in 830 and is specially designed for people who cope with poor vision in one eye and litteraly only need half a binocular. Specifications for Kite Optics 8X30mm Monocular: Manufacturer: Kite Optics Color: Black Magnification: 8 x Objective Lens Diameter: 30 mm Field of View Linear: 131 ft at 1000 yds Field of View Angle: 7.5 degrees Eye Relief: 11 mm Weight: 15.4 lb Close Focus: 4.5 ft Package Contents: Kite Optics 8X30mm Monocular Kite Optics K281038: 8X30 Monocular