International photographer (Jan-Dec 1935)

April, 1935 T h INTERNATIONAL PHOTOGRAPHER Thirteen The One Man Laboratory By William Berri MOBILITY — That in itself expresses the importance to the motion picture industry of the compact, portable, one-man laboratory developed by Hugh H. Gwynne. Through many trying experiences in foreign countries handling laboratory work on make-shift equipment, he has evolved this transportable developing machine. Further contemplation brings forth possibilities of economy, efficiency and of individual processing for distinctly individual results. First of all let us consider that the developer solution circulating through the automatic temperature controlled system amounts to twenty gallons. With an exposed area of less than one square foot, the oxidation of the developer is reduced to a minimum. Breakage is a factor actually eliminated and thirty feet of leader stock is used to clear the track for adjustment of speed. Self-contained (overall dimensions 8 feet length; 5 feet 10 inches height; 3 feet width) this machine occupies very small Moor space, which enhances its utility in many places or locations, making it possible for machine development which has heretofore been impossible. Weight approximately 450 pounds, this machine has a capacity of 5,000 feet positive and sound track per eight hours; 2,500 feet panchromatic negative per eight hours; making it ideal and of sufficient capacity to take care of one producing unit. If larger capacity is required "The One Man Laboratory" can be arranged in batteries of two or more to meet the required production demands. A positive drive sprocket supplemented by six additional "booster" spools moves the film in a straight line from feed end to take-up spindles, with a half twist between each roller, resulting in the greatest compensation for stretch and shrinkage. The developing process follows accepted practice. First: Developing Tank. Second: Hypo Tank. Third: Water Tanks. Fourth: Drying Compartments. All of which are self-contained. The machine has been designed to accommodate standard 35 mm.. 16 mm. or Leica film without any mechanical changes or adjustments. Many cameramen feel that the present method of standardization of machine develpoment places them at a disadvantage in trying for certain effects that can only be obtained by experimentation in processing. A small machine of this type placed at their disposal would make experiment economically practical and result in further artistic attainments by cinematographers. These units can be knocked down and made ready for shipment (by water or rail) in three hours, and can be re-assembled, checked and tested for production in the same time. X E W ! i Special Eyemo Tripod Extra Rigid — Light Weight This new tripod was designed especially for use with the motor and magazine-equipped B & H Eyemo Camera, for news, scientific, and exploration work. Smooth working pam and tilt mechanism. Up tilt 45° with 400-foot magazine, 6.° without magazine. Tilts straight down. No weaving in a strong wind or when hand cranking. Legs have single-geared, quick-action clamp and steel spurs. They are 36 inches closed, 72 inches extended. Write for complete specifications and literati r . BELL & HOWELL COMPANY 1849 Larchnu nt Ave., Chicago; 11 West 42nd St., New York; 716 North LaBrea Ave., Hollywood; 320 Regent St., London ( B & H Co., Ltd.) Established 1907. Flease mention The International Photographer when corresponding with advertisers.