American cinematographer (Jan-Dec 1924)

Twenty AMERICAN CINEMATOGRAPHER July, 1924 Roy Davidge Film Laboratories NOW LOCATED AT 6701 Santa Monica Blvd. (Opposite Brulatour's) GREATLY INCREASED FACILITIES NEW EQUIPMENT COMPLETE COMMERCIAL PROJECTION ROOM PHONE GRanite 9503 BASS CHICAGO Buys, Sells, Exchanges Cameras, Printers, Lenses Complete Stocks Cash for Bell & Howell and De Brie equipment Catalog Free Bass Camera Company I09-AC North Dearborn, Chicago, 111. FOR SALE BELL & HOWELL OUTFIT Camera, Tripods, Improved Thalhammer Iris, Six Magazines, 40 mm., 50 mm., 75 mm. and 110 mm. Lenses, also Verito 75 mm., Carrying Cases and Trunk. Outfitted to Satisfy the Most Exacting Right price and right terms to right party. Call J. A. Dubray, 615 North Windsor Blvd. Phone 433-305 Los Angeles Cinema Studios Supply Corp. 1438 Beachwood Drive Holly 0819 LIGHTING EQUIPMENT FOR RENT L. A. FIRE DEPARTMENT WIND MACHINES Water Engine FOR RENT! Bell & Howell Cameras COMPLETE EQUIPMENT 40, 50, 75 M. M. Lenses 170 Shutter. J. R. LOCKWOOD 523 North Orange St. Phone Glendale 336 I -W Glendale, California S. M. P. E. Holds Spring Meeting; Numerous Papers Read The Spring meeting of the Society of Motion Picture Engineers, held at Lakewood Farm Inn, Roscoe, N. Y., brought forth a schedule of well treated papers on cinematographic and scientific subjects of interest to all in the technical and production end of the film industry. A substantial attendance at the S. M. P. E. meeting was reported, with a well arranged and diversified program to amuse members during the time that they were not in convention assembled. The papers presented included "The Progress of Arc Projection Efficiency" by P. R. Bassett of the Sperry Gyroscope Company; "Miniature for Motion Pictures" by J. A. Ball; "Stereoscopy and its Possibilities in Projection" by Dr. H. Kellner; "Colored Glasses for Stage Illumination" by H. P. Gage of the Corning Glass Works; "A Method of Comparing Definitions of Projection Lenses" by S. C. Rogers; "Constant Current and Constant Potential Generators for Motion Picture Projection Arcs" by A. M. Candy; "The Effect of Humidity Upon Photographic Speed" by F. F. Renwick ; "The Straight Line Developing Machine" by R. C. Hubbard; "Difficulties Encountered in the Standardization of Theatre Screen and Illumination" by F. H. Richardson; "The Effect of Scratches on the Strength of Motion Picture Film" by Dr. Sheppard; "Requirements of the Educational and Non-Theatrical Entertainment Field" by W. W. Kincaid; "Motion Picture Projection as a Medium of Instruction" by A. G. Balcom ; "The Filmo Automatic Cine Camera and Cine Projector" by J. H. McNabb; "Results Obtained with the Relay Condensery System" by Dr. Kellner; "Is The Continuous Projector Commercially Practical?" by H. Griffin and L. Bowen ; "Sprocket Measurements" by W. C. Vinten; "Improvements in Motion Picture Laboratory Apparatus" by J. I. Crabtree and C. E. Ives; " Some Characteristics of Film Base" by Max Briefer; "Panoramic Motion Pictures" by G. C. Ziliotto; and "Methods of Making Motion Picture Titles" by Mr. Rupert and J. I. Crabtree. Among those in attendance were: P. M. Abbott, P. L. C. Barbier, P. R. Bassett, George Blair, M. Briefer, D. Brown, R. S. Burnap, A. M. Beatty, S. R. Burns, Lester Bowen, G. L. Chanier, W. B. Cook, J. I. Crabtree, H. H. Cudmore, L. E. Davidson, E. J. Denison, A. C. Dick, C. E. Egeler, E. M. Flaherty, K. Flynn, J. L. Faircloth, H. P. Gage, H. Griffin, R. M. Hill, A. J. Holman, J. C. Hornstein, R. C. Hubbard, W. C. Ihnen, C. E. Ives, J. Jones, L. A. Jones, Wm. V. D. Kelley, H. Kellner, W. W. Kincaid, J. C. Kroesen, W. C. Kunzmann, W. F. Little, H. H. McNabb, J. R. Manheimer, Max Mayer, I. L. Nixon, J. A. Norling, M. W. Palmer, R. S. Peck, L. C. Porter, J. H. Powrie, F. F. Renwick, F. H. Richardson, A. C. Roebuck, S. C. Rodgers, Max Ruben, E. E. Richardson, F. M. Savage, J. A. Summers, G. A. Scanlan, J. H. Theiss, L. M. Townsend, W. C. Vinton, G. C. Ziliotto. fes2$n£a