The international photographer (Jan-Dec 1936)

January, 1936 T h I N T E R X A T I O N A PHOTOGRAPHER Eleven The Best of Its Kind in a Field of Its Own In December 1932 just as photographers were beginning to realize that the miniature camera was a serious instrument and was destined to revolutionize photography in many respects, the pioneer magazine of miniature camera photography made its appearance. At that time "Leica Photography" was issued as an eight page offset bulletin. The interest in the little magazine was tremendous, and in April 1934 it was issued in regular printed form. The number of its readers increased steadily with remarkable speed; naturally the interest in the magazine was also augmented. To cope with this interest and provide its readers with much of the valuable information contributed by authoritative miniature camera users, "Leica Photography" was increased in size from time to time, to include more articles and illustrations. With the number of its readers at present well over 15,000 "Leica Photography" now appears in a completely new and interesting dress. Its pages number twenty-four, including much more material, and it is profusely illustrated. The entire layout is different, and the illustrations beautifully reproduced. Nor does this mark the criterion, for improvements and additions will be made from time to time. Readers are always invited to send in suggestions, ideas and photographs to "Leica Photography," which are published in the magazine. In this manner it serves as an exchange of ideas thereby fostering the progress of miniature photography, and the numerous photographs that are reproduced serve to show the miniature photographer the possibilities of his camera. Write for a sample copy of the new Dec. 1935 "Leica Photography" to E. Leitz, Inc., 60 East 10th St., New York City. ArtReeves' Galvanometer One of the latest additions to the long line of recording and laboratory equipment manufactured by the Hollywood Motion Picture Equipment Company is an oil damped galvanometer and optical system for recording the variable area type of sound track. The complete unit is shown in the accompanying photograph mounted on the standard model recording camera with the automatic speed control motor. Although in over 90% of all major studios, sound recording in Hollywood is done on variable density recording systems, foreign studios and the smaller independent studios are finding it increasingly difficult to keep up with the high standards of quality set The ArtReeves' New Galvanometer by these Hollywood studios. The reason for this is well known to all in the sound branch of the motion picture industry. The smaller laboratories feel they cannot afford the densitometers, sensitometers, continuous developing machines, exact temperature control of all developing solution and numerous other costly accessories necessary to process variable density sound track and to maintain the proper gamma in both negative and prints. Since in variable density improper development of either the negative or prints results in a loss of quality a variable area recording system inherently stable and free from development troubles soon pays for itself in savings on retakes and reprints. The Hollywood Motion Picture Equipment Company after exhaustive tests and months of experiments designed a foolproof oil damped galvanometer that far surpasses any previously offered to the trade in ruggedness, frequency range and low power requirements. The complete galvanometer is encased in an oil tight, oil filled, duralumin case, the light from the exciter lamp entering and leaving through a lens window. Oil damping of the mirror is used as the only means of damping the mirror which does not introduce spurious harmonics and resonance peaks. The oil also protects the mirror surface and keps it free from dirt. No current is required for the magnetic field, a powerful new designed cobalt permanent magnet being used. The movement needs a power level of only .060 watts for 100% modulation of the sound track. This means that instead of the large bulky amplifiers and associated batteries formerly used, small compact amplifiers and batteries, weighing only a few pounds may be used. The optical system is highly efficient, a 3 watt exciter lamp being sufficient on regular sound recording stock. Monitoring the sound track may at all times be checked visually. All sliding surfaces have been eliminated in the recording camera, a great help in hot, humid climates. For those studios already equipped with an Art Reeves double sprocket recording camera a bracket having galvanometer and optical system solidly mounted may be purchased and their recorders changed over to variable area in a few minutes. An entirely new type amplifier, using the new all metal tube and including adjustable noise reduction has been built to go with the new galvanometer and optical system. Please mention The International Photographer when corresponding with advertisers.