26 OPTICAL AND PHOTOGRAPHIC APPARATUS AND DEVICES AND PARTS THEREFOR, PARTICULARLY, CAMERAS, CAMERA PARTS, PROJECTORS, PROJECTOR PARTS, EDITOR AND VIEWER UNITS, BINOCULARS, PHOTOGRAPHIC ENLARGERS, LENSES AND ACCESSORIES FOR USE THEREWITH, TRIPODS, CAMERA AND GADGET BAGS, STROBES, FLASH GUNS, FLASH UNITS, AND FLASH BRACKETS