Use the Bushnell H20 binocular under any seasonal conditions as the o-ring seal makes it waterproof, while the nitrogen-purged protects it from fog. With 8x magnification, these Bushnell binoculars let you get extremely closer to farther objects. With 370/123 field-of view, these Bushnell 8x25 binoculars allow you to see large area at one time, as well as enable you to follow a moving subject with ease. Take the benefit of viewing brightly illuminated images with the 3.1 Exit Pupil of these Bushnell binoculars. Get a full image in single view with the 12 eye relief of these Bushnell 8x25 binoculars. The Roof prisms system of the Bushnell H20 binoculars makes it lighter in weight. With center focus and fully-coated optics, the Bushnell H20 binoculars ensure great visual clarity as well as durability.