Constructed from a lightweight and corrosion-resistant magnesium alloy that's wrapped in protective slip-resistant armour, Hawke Frontier APO 10x42 Binoculars provides the highest possible level of image quality that achievable. The lens makeup of these binoculars is able to deliver bright, vivid and clarity-rich images that are true-to-life, even when observing from far away distances. It features anti-reflection fully multicoated extra-low dispersion (ED) apochromatic lenses with phase-correcting and dielectric coatings on BAK4 roof prisms. It's these additions that help to produce those high-contrast and accurate images without distortion or fringing. The pair also features an ultra-wide field of view with near-panoramic views that is complemented by the complex and intelligent lens structure. Finally, the lens tubes are nitrogen-filled and O-ring sealed which makes them waterproof and resistant to irritating internal fogging when out in the wilderness.