Exceptional Optical Performance: The Swarovski 12x42 NL Pure Binoculars feature extra-low dispersion (HD) glass elements and proprietary coatings for superior image quality, with highly reflective roof prisms and fully multicoated lenses, delivering detailed, color-rich views with high contrast and resolution.. Innovative Design and Handling: These binoculars include a re-engineered bridge and focus system for smooth movement, a compact magnesium housing covered in impact-resistant rubber armoring, and a stable closed-bridge configuration, providing a comfortable grip and easy handling even in cold or wet conditions.. Durable and Weather-Resistant Construction: The nitrogen-filled, O-ring sealed housing is waterproof up to 13 feet and resistant to internal fogging, ensuring reliable performance in extreme environmental conditions, with an operating temperature range from -13 to 131°F.. User-Friendly Features: They offer a spacious 339-foot field of view at 1000 yards, an ultra-wide 71°