42 mm Single Bridge Roof Binocular 8x
With its superior optics and premium features, the Expedition Series 8x42 binocular from National Geographic is an excellent observing aid for hikers, wildlife watchers and adventurers of all types. This versatile binocular has a 42mm aperture that brings in lots of light without being cumbersome. When paired with the device’s superior Bak-4 prisms and fully multi-coated lenses, this ample aperture delivers bright images rich in contrast, color and clarity. To ensure all-weather performance, the high-end optics are secured in a waterproof housing that is purged with an inert gas to create an environment that is impervious to internal fogging. These binoculars offer 8x magnification that produces crisp details — especially at shorter to mid-distances — while maximizing field of view and a generous eye relief of more than 20mm to allow eyeglass wearers to easily enjoy the full image.