Motion picture photography for the amateur (1924)

FOR THE AMATEUR manually by revolving a milled ring which surrounds the shutter aperture dial. There are two film meters provided. One a dial with manual reset pointer is used to record footage of each individual scene which is used when such records are required by the producer. The other is a Veeder counter which records both feet and individual frames. This last feature is invaluable in trick work. The take-up is of the spring belt type and as it operates in view of the operator, a constant check upon the take-up is possible. In filling the magazine, the film must be rewound so that the emulsion side is on the outside of the roll. The spools are about twice the diameter of the original wooden spool upon which the film is wound at the factory. I have known cinema- tographers who pulled a strip of film from the center of the roll until a hole was obtained which was large enough to slip over this spool, then by crossing the belt the film could be used without rewinding. This saves time, but wastes a great deal of film. The shuttle mechanism is a wonderful piece of me- chanism. The pins are accurately ground and are said to fit the perforation of the film to within a ten- thousandth of an inch. There are two pins, known as registering pins, which point backward and are fixed in position. These pins engage perforations at the top of the film. Then there are two other pins which move with the shuttle and actuate the film. The entire aper- ture plate moves backward, the moving pins move into the film and engage the perforations and pull the film down one frame, then the aperture plate, or more 59