National Geographic 8x42 Binocular

National Geographic 8x42 Binocular. These pocket binoculars feature a roof prism design that is easy to manipulate for proper eye distance and quality optics made of fully-coated BK-7 glass. Offering a field of view of 413 feet at 1000 yards these binoculars magnify subjects eight times their standard observable size making them an ideal beginner tool for bird watching or other wildlife observation. Other features include a textured central focusing wheel rubber eyecups for comfort and diopter a