International photographer (Feb-Dec 1929)

Eight The INTERNATIONAL PHOTOGRAPHER October, 1929 S. M. P. E. TO TORONTO (Continued from Pafc -I I "Theatre Acoustics," by S. K. Wolfe, Electrical Research Products, Inc. 'The Optics of Motion Picture Projection," by Professor Arthur C. Hardy, Massachusetts Institute of Technology. 'A New Method of Blocking Out Splices in Sound Film," by J. I. Crabtree and C. E. Ives, Eastman Kodak Company. 'Photographic Characteristics of Sound Recording Film," by L. A. Jones and O. Sandvik, Eastman Kodak Company. "Characteristics of Loud Speakers for Theatre Use," by D. G. Blattner, Bell Telephone Laboratories, Inc. Wednesday, October 9th 'Lubrication of Sound Film," by J. I. Crabtree, D. Hindman, C. E. Ives and O. Sandvik, Eastman Kodak Company. 'A Film Numbering Device for Cameras and Recorders," by M. W. Palmer, Par amountFamous-Players-Lasky Corporation. 'Dimensional Analysis as an Aid to Miniature Cinematography," by G. F. Hutchins, General Electric Company. "The Film Perforation and Means for Its Measurement," by W. H. Carson, Agfa Ansco Corporation. "Camera Mechanism — Ancient and Modern," by Arthur S. Newman, London, England. "Early History of Motion Picture Cameras for Film Wider Than 35 mm.," by Carl Louis Gregory. "Possibilities and Problems of the Wider Film," by Lorenzo Del Riccio, Paramount-Famous-Lasky Corporation. "Rectangle Proportions in Pictorial Composition,'' by L. A. Jones, Eastman Kodak Company. "Wide Films and Standardization," by A. S. Howell and J. A. Dubray, Bell k Howell Company. "The Wide Films From the Recording Standpoint," by C. A. Tuthill, Paramount-FamousLa sky Corporation. "Artistic Consideration in Sound Film Production," by Joe W. Coffman, Carpenter-Goldman Laboratories, Inc. Thursday, October 10th "A Rapid Method of Determining the Degree of Exhaustion of a Developer," by M. L. Dundon, G. H. Brown and J. G. Capstaff, Eastman Kodak Company. "Burn Out Phenomenon of the Tungsten Filament," by Gorton T. Fonda, General Electric Company. "Water Cooling of Incandescent Lamps, ': by Dr. Newell T. Gordon, General Electric Company. "Radiation Characteristics of Two Mercury Arcs," by A. C. Downes, National Carbon Company. "Some Properties of Chrome Alum Fixing Baths," by J. I. Crabtree and J. F. Ross, Eastman Kodak Company. Open Forum. Other papers are forthcoming, but titles and authors are not yet definitely ready for announcement. tion Picture Engineers represent the industry, or is it merely a club with a high sounding name?" We were able to assure him that it did, very much, represent the best brains in the motion picture industry but had not at hand a classification of the membership to prove it to him. President Porter was good enough to have the following data on the membership compiled and it is highly informative as to the personnel of the society: Engineers, 129 Chief 40 Physicists 5 Mechanical 5 Electrical 4 Radio 3 Designing ___ 2 Film rceording..__ 2 ANALYSIS '>]." MBJIBERSHIP Somebody not long ago, a man who is supposed to know his way about in motion picture circles, asked the question: "Do the members of this Society of Mo Research 22 Technical 14 Consulting 11 Projection 8 Chemical 6 Installation 6 Executives, 74 Presidents 25 Vice Presidents 18 Secretary and Treasurer 15 Genera] Managers 16 Managers, 56 Managers 22 Technical 8 Production Laboratory Supts. 6 Managers 15 Experimenters .... 5 Cinematographers, 45 Cameramen 25 Chief Cinematographers 20 Commercial, 34 Sales managers -13 Advertising Editors 9 managers ... 3 Sales represent Patent attorneys . 2 atives 6 Lawyers 1 (Concluded on Page 1 5) A STUDY Full Natural Color No limitations. Your present camera, plus a revolving filter and a filter for your projector. Project to any size of black and white. Take early morning scenes with their subdued natural colors, or bright sunlight shots with their vivid intense colors, or cloudy day pictures with their soft pastel shades, or pictures in the waning evening with the subtle colors of a dying sunset and the deep rich shadows of approaching night — they are all in their true color values. Duplicate prints, as many as you want, all giving, the same true colors. OF THE FEATURES YOU WANT MOST AS AN AMATEUR CINEMATOGRAPHER NARROWS YOUR CHOICE TO For Full Details Write MAX B. DUPONT VITACOLOR CORPORATION Main Office 207-0 N. Occidental Blvd. Los Angeles, Calif. Eastern Branch 11 West 42nd Street Xew York City Southern Branch 010-12 Baronne Street Xew Orleans, La. VITACOLOR