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Arya 15 x 70 Porro Prism astronomy binocular is designed for users who want higher magnification for both terrestrial and celestial observation. It provides 15x magnification with a large 70 mm objective lens, a 4.7 mm exit pupil, 22.1 mm eye relief and a 77 m field of view. Its BAK4 coated prism and FC-coated optics support clear image formation for distant subjects and sky observation. The magnesium-alloy body with rubber grips provides a sturdy and comfortable grip, while nitrogen-filled optics help reduce internal fogging and the waterproof construction supports outdoor use. The binocular should not be submerged beyond 1 metre or for more than 3 minutes. At 1370 g, it is a substantial astronomy binocular suited to users who are comfortable with a larger optical instrument and want high magnification for astronomy and long-distance observation.