10x42 Endurance ED Binoculars The Hawke Sports Optics 10x42 Endurance ED Binoculars, in green, are equipped with phase-corrected BAK4 roof prisms, extra low-dispersion (ED) glass, and fully multi-coated anti-reflection optics to deliver bright, sharp, high-contrast images with true-to-life colors and minimal color fringing. The 42mm objective lenses enhance low-light performance, making these binoculars suitable for a wide range of outdoor activities, from hunting and birdwatching to attending sporting events. Built for durability and comfort, the binoculars feature a polycarbonate chassis that is both impact- and corrosion-resistant. The temperature-resistant design ensures the optical tubes remain stable, preventing misalignment that can affect focus over time. The rubber armoring protects against drops and impacts, while providing a slip-resistant grip, even in wet or cold conditions. Nitrogen-filled and O-ring sealed, these binoculars are waterproof and fogproof, ready to withstand extreme weather. A right-eye diopter adjustment allows for personalized focusing, and the twist-up eyecups ensure comfortable use, whether or not you wear glasses.

Optical Performance, Use and Handling, and Construction Details The Hawke Sports Optics 10x42 Endurance ED Binoculars offer 10x magnification and 42mm objective lenses, featuring compact BAK4 roof prisms and extra-low-dispersion (ED) glass to correct chromatic aberrations for accurate color representation and reduced fringing. The fully multi-coated, anti-reflection optics enhance image brightness, contrast, and color fidelity, while the phase-corrected prism coatings reduce internal light dispersion for improved visual performance. With a 304-foot field of view at 1000 yards and a 58° apparent angle of view, these binoculars provide a broad, immersive viewing experience. The closed bridge design allows for easy handling, and the interpupillary distance can be adjusted between 53 and 73mm. A large, knurled focus wheel requires just 1.2 turns to adjust from minimum to maximum focus, while the right-eye diopter correction and twist-up, click-stop eyecups ensure comfort for both glasses wearers and non-wearers. The 4.2mm exit pupil and 13mm eye relief enhance viewing comfort during extended use. Built to withstand tough conditions, the binoculars feature an impact-, corrosion-, and temperature-resistant polycarbonate chassis. They are nitrogen-filled for reliable waterproof and fogproof performance. The green rubber armoring not only shields the chassis from impacts but also provides a textured, slip-resistant grip, enhanced by deep palm grooves for added stability. The binoculars come with stay-on, flip-down objective lens covers for convenience, and they weigh 23 ounces, making them durable yet lightweight enough for extended outdoor use.