26 PHOTOGRAPHIC AND CINEMATOGRAPHIC EQUIPMENT AND ACCESSORIES-NAMELY, PHOTOGRAPHIC AND CINEMATOGRAPHIC CAMERAS AND PROJECTORS, DEVELOPING TANKS AND DEVELOPING APPARATUS, OBJECTIVES AND LENSES, OBJECTIVES AND LENS MOUNTS, VIEWFINDERS, DIAPHRAGMS, ENLARGERS, GROUND GLASS PLATES FOR REFLEX CAMERSAS, VIEWERS, PHOTOGRAPHIC AND CINEMATOGRAPHIC FOCUSING UNITS; AND OPTICAL INSTRUMENTS-NAMELY, LIGHT METERS, TESTERS FOR OBJECTIVES AND LENSES, OPTICAL PRISMS, OPTICAL WEDGES, TELESCOPES, BINOCULARS, MAGNIFIERS, COLLIMATORS, AND MICROSCOPES