Zeiss S Image Stabilization 20x60mm Porro Prism Binocular Black Large NSN 9005.10.0040. These Zeiss Binoculars feature a mechanical image stabilization that permits a steady image by compensating shakes / tremors of the binocular caused by the hands. This image stabilizer by Zeiss is easily activated with a press of a button and works noiselessly and without batteries. In addition to the image stabilization is the binocular's high quality performance and construction the essence of Zeiss Binoculars. The Zeiss 20x60S Binocular features a high 20x magnification that allows for an up close and personal view of an object. Combining with the large magnification is a large 60mm lens which lets more light through the binocular for bright images even in twilight conditions. The Zeiss 20 x 60 S Image Stabilization Waterproof Binoculars also features Zeiss' high-quality construction. These binoculars have a rugged metal housing with black rubber armoring making the binocular durable and waterproof. Rubber eyepieces are attached to the body for a comfortable observation with or without eyeglasses. These features of the Zeiss 20X60 S Image Stabilization Binoculars make it a powerful binocular that allows for a stable image under high magnifications and low-light conditions. Specifications for Zeiss S Image Stabilization 20x60mm Porro Prism Binocular: Manufacturer: Zeiss Color: Black Magnification: 20 x Objective Lens Diameter: 60 mm Prism System: Porro Prism Material: BAK4 Image Stabilizer: Yes Eye Relief: 13 mm Exit Pupil: 3 mm Field of View Linear: 156 ft at 1000 yds Field of View Angle: 60 degrees Optical Coating: ZEISS T Multi-Layer Coating Customized to Each Lens Binoculars Focus System: Individual Eyepiece Focus Twilight Factor: 34.6 Interpupillary Distance: 57 - 73 mm Close Focus: 45.9 ft Diopter Adjustment Range: -7 - 7 dpt Weather Resistance: Fog Resistant Water Resistant Mark: 0.4 bars Water Resistance Level: Waterproof Length: 10.8 in Weight: 58 oz Finish: Black Fabric/Material: Polycarbonate Condition: New Package Type: Box Magnification Type: Fixed Height: 10.8 in Features of Zeiss 20x60S Image Stabilization Binoculars w/ High Twilight Performance: Mechanical Image Stabilization High Image Quality High Resolution High Twilight Performance Waterproof No Batteries Required Rubber Armoring Shock Absorption Rubber Eye Cups Package Contents: Zeiss S Image Stabilization 20x60mm Porro Prism Binocular Zeiss 526000-0000-000: S Image Stabilization 20x60mm Porro Prism Binocular Black Large NSN 9005.10.0040