A great selection of binoculars from Brunton, Burris, Bushnell, Leupold & Nikon. From the waterproof H2O series to the Legend series, Binoculars are available in many styles & configurations. The Galilean design, primarily used in lower cost models such as opera glasses. Porro prism, features a wide body, offset from the eyepieces. Roof prism are narrow, compact and sometimes the most expensive. Binoculars are two identical telescopes mounted side by side and aligned to point accurately in the same direction.