Designed for mid- to long-range observations-especially in low light-by law enforcement, military, and tactical professionals and engineered to exacting military specifications for outstanding performance in challenging environmental conditions, the Steiner Optics 7x50 T750 Tactical Binoculars is engineered to be an invaluable addition to any kit. This binocular's optics are fully multi-coated to maximize light transmission through the light path, and its 7x magnification and 50mm objectives work together to produce an impressive 7.1mm exit pupil that, when combined with the generous field of view, present you with an immersive observational experience defined by bright and clear high-contrast views and accurate color rendition from the pre-dawn hours to well past sunset. To help adapt to rapidly changing situations, Steiner outfitted the binocular with their Sports-Auto-Focusing System, which allows you to focus each eyepiece just one time and eliminates the need to refocus again regardless of how near or far the subject is-or if it is moving. Complementing the optical performance are construction details that allow this binocular to withstand the rigors of the outdoors. These details begin with a lightweight chassis that is wrapped in an oil, petroleum, and chemical-resistant NBR synthetic rubber armor that offers improved grip security, especially in cold and wet weather. Its optical tubes are nitrogen filled and O-ring sealed to be waterproof to a depth of 16 feet and resistant to internal fogging when moving through extreme temperature changes and environmental conditions. In a blind, on a boat, at the range, during surveillance, or in critical tactical engagements, the T750 binocular performs to a professional's high standards in all weather and environmental conditions. Optical Performance Moderate 7x magnification brings subjects in close for observation while ensuring a wide exit pupil for low-light use Large 50mm objective lens diameter draws in copious amounts of light to boost its light-gathering ability in challenging conditions such as at dawn and dusk or in dense fog Traditional Porro prism optical path produces a rich depth of field to more easily discern the relative distances between objects in the field of view Anti-reflection fully multi-coated optics maximize light transmission, improve color rendition accuracy, enhance contrast, and improve clarity Generous 356' field of view at 1000 yards Use and Handling Individually focusing eyepieces enable precise tack-sharp views Fold-down rubber eyecups for comfortable use with or without eyewear Wide 7.1mm exit pupil is optimized for low-light conditions to completely cover pupils when they are fully dilated to avoid vignetting of the view Steiner 2052 Specs Prism Type Porro Performance Magnification 7x Objective Lens Diameter 50 mm Angle of View 6.8Adeg (Actual) Field of View 356' @ 1000 yd / 118.19 m @ 1000 m Minimum Focus Distance 66' / 20.1 m Exit Pupil Diameter 7.1 mm Diopter Adjustment Yes Focus Type Individual Features: Fogproof Yes, Nitrogen Filled Water Resistance Waterproof General Dimensions 8.2 x 5.5" / 20.83 x 13.97 cm Weight 20.5 oz / 581 g