Optical, photographic and Film Apparatuses; cameras, parts and accessories therefor including films, lenses, enlargers, optical filters, range finders, exposure meters and colour temperature meters, camera shutters, view finders, flash guns, both battery and electronic types, bellow extensions, projectors, binoculars, reproduction units, photographic print dryers and glazers, photographic timers, photographic masking boards, diaviewers, and diaholders, printing frames and boxes, developing tanks and projectors including slide, strip and moving film projectors,