Movie viewer
Film viewers or motion picture viewers are a group of devices for viewing motion picture films without blackout. The kinetoscope can be seen as the original model . Most film viewers work according to the principle of optical compensation of the image wandering by means of a polygon prism, film drive class 0. Film viewers were and are built for all film formats, often as combination devices for two or three formats.
The small film viewers are handy and portable. Loading the film is very quick with a little practice. You can move the film back and forth by hand, even frame by frame. Larger film viewers also exist with class 1 film drives, for example the Moviola devices. They are available as table models and with a mobile substructure.
It is most pleasant to watch a film in a slightly subdued light. A pair of rewinders for film spools completes the viewer. Many movie viewers have a marking device that can be used to punch a hole or notch in the film. This type of marking is different from that on the cutting table , where removable marks are made with pens.
Film viewers are ideal for sorting and taking a look. Image position, sharpness and other sensitive points cannot be assessed due to the second-class image quality. Film viewers get by with small incandescent lamps.