Bausch sold spectacles, thermometers, field glasses, magnifiers and opera glasses. The company manufactured and sold astronomical telescopes, spyglasses, binoculars, microscopes and opera glasses. Barbicane, Ardan and Nicholl begin geographical observations with opera glasses. To promotion album, they released two music video, "Opera Glasses" and "Planet of the Apes". Upon entering the theater's lobby, guests pick up their "opera glasses" (3D glasses).