The Orros 10x42 1042 Binocular from Vanguard sports a larger magnification of 10x thereby achieving the finest details at the greatest distances. The Apparent Angle of View (AAoV) affords a comfortable scanning angle of almost 57° with the ability to study the subject with precision. The extensive objective size of 42mm makes low-light conditions a study in functional high light-transmission. Whether at dusk, dawn or overcast skies this optic is ready to deliver great seeing. It is o-ring sealed for waterproof and fogproof protection in rain, mist, fog or a hike along a white-water canyon river. The rubber armoring, besides offering shielding from bumps and bangs, is textured to supply an added safety margin so that they won't slip out of the hands into the hydrosphere even when wet. The large centered focus knob affords easily accessible focusing even with wet gloves. Bak4 prisms and fully multi-coated lenses produce clarity, color fidelity and highly contrasted images. This is a nice sized binocular for a multitude of environments and applications.