This compact and lightweight binocular combines aspherical optical elements and BaK4 porro prisms to deliver edge-to-edge image sharpness. The optical elements are also fully multi-coated to provide high transmission of light. With 8.5x magnification and 21mm objectives, you obtain a notable magnification, minimize image jitter due to unsteady hands, and a compact form factor. You can easily spot your targets with a wide 6 degree angular field of view, and quickly bring them into focus with a center focus wheel. In addition to observing distant scenes, birds and wildlife, the minimum focus of 1.65 feet allows you to study in greater detail close objects like butterflies, animal footprints, or landscape features.