For superb clarity and resolution in low-light conditions, top hunters trust Leupold BX-4 Pro Guide HD binoculars. These compact, lightweight binoculars deliver the brightness, edge-to-edge sharpness, and glare-resistant contrast needed to monitor game activity at any distance during the prime periods of sunrise and sunset. With a slender, comfortable hand fit and open-bridge roof prism design, the BX-4 Pro Guide HD offers near-effortless handling. The high-def calcium fluoride lenses are fully multicoated and supported by phase-coated BAK-4 prisms to provide clear, crisp, full-field imaging with true color fidelity; Leupold's Twilight Max HD Light Management System combines enhanced light transmission with shutdown glare elimination for unhindered viewing at any time of day. 100% waterproof and fogproof. Imported. Superior performance in all light levels Outstanding for key dawn/dusk periods Lightweight ergonomic design Open-bridge roof prism construction Multicoated high-def calcium fluoride lenses Phase-coated BAK-4 prisms Twilight Max HD Light Management System 100% waterproof and fogproof