Journal of the Society of Motion Picture Engineers (1930-1949)

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JOURNAL OF THE SOCIETY OF MOTION PICTURE ENGINEERS VOLUME XXXVIII • • • JANUARY, 1942 CONTENTS The IR System: An Optical Method for Increasing Depth of Field ALFRED N. GOLDSMITH 3 A New Dichroic Reflector and Its Application to Photocell Monitoring Systems G. L. DIMMICK 36 Production and Release Applications of Fine-Grain Films for Variable-Density Sound-Recording C. R. DAILY AND I. M. CHAMBERS 45 Laboratory Modification and Procedure in Connection with Fine-Grain Release Printing J. R. WILKINSON AND F. L. EICH 56 A Note on the Processing of Eastman 1302 Fine Grain Release Positive in Hollywood V. C. SHANER 66 Report of the Theater Engineering Committee 74 Report of the Standards Committee 87 Some Equipment Problems of the Direct 16-Mm Producer L. THOMPSON 89 Current Literature 103 Society Announcements 104 (The Society is not responsible for statements oj authors.)