A high optical performance that features a bright, wide field of view and minimal chromatic aberration is mounted in an ergonomic design that anyone can use comfortably. A Porro prism enables a wider space between the left and right objective lenses, delivering the stereoscopic view unique to binoculars. The high optical technology cultivated on interchangeable lenses results in coating used on all lenses, the prism, and the use of aspherical lenses.