The 10x binocular is the Jack of all trades when it comes to glassing. It provides enough field of view for tight areas, while delivering enough magnification for wide-open spaces. Compared to its 42mm counterpart, the 50mm objectives let in even more light for improved long-range identification. The BX-4 Pro Guide HD 10x50mm is compact, lightweight, and the perfect power for a lot of hunters. Built around Leupold's Elite Optical System, the BX-4 Pro Guide HD binocular offers excellent dawn-to-dusk light transmission for a bright image when it matters most, elite-level glare reduction in harsh light, and the resolution and clarity that diehard hunters and shooters demand Mfg: Leupold