Its combination of magnifying power and lens size makes the 8x42 Orros 8420 Binocular from Vanguard a great choice for a wide range of uses. The generous objective lens gathers plenty of light even at dusk and dawn, and the 8x magnification is powerful enough to bring distant details close, while avoiding the shaky image of higher-powered optics. The Orros is fogproof and O-ring sealed for waterproof performance, and its protective rubber armoring assures a secure grip even when wet. BAK4 roof prisms and fully multi-coated lenses ensure optimum color fidelity, clarity, and brightness. The large centered focus knob is comfortable even with gloves on, and a diopter adjustment allows you to customize the focus. A sleek closed bridge houses the hinge.Optical Performance8x magnification42mm objective lensesCompact roof prism optical pathField of view: 327 feet at 1000 yardsBAK4 prisms and fully multi-coated lenses for a bright, sharp imageUse and HandlingClosed-bridge configurationLarge knurled center focus wheelRight eye dioptric adjustment collarConstruction DetailsTwist-up eyecupsO-ring sealedRubber armored