The Simmons ProSport 8x40mm Binocular (Clamshell Packaging) has been engineered to deliver a very expansive apparent field of view of 65.5deg. This wide angle binocular can scan 430 feet at 1000 yards serving the user with the ability to quite literally broaden their horizon. A normative exit pupil of 5 millimeters with eye relief of 12.3 millimeters delivers a comfortable viewing experience. BAK7 multi coated lenses afford brighter, sharper, more contrasted images. Built for the more adventurous - waterproofing, fogproofing and durable rubber armoring allow use in rough and tumble environments.