These large-size binoculars with 150 mm large-aperture objective lenses are binoculars of the highest quality. By applying a multilayer anti-reflection coating (Electron Beam Coating) to each lens element, we have realized a sharper image. Boasting precise resolving power and superior light condensing power, and moreover, equipped with ED lenses in accordance with their purpose, they are ideal for exacting observations in specialized fields.