International photographer (Jan-Dec 1934)

October, 1934 The INTERNATIONAL P H O T O (i R A P H !• R Twenty-five ONE HUNDRED PERCENT ARC LAMPS (Continued from Page 14) in some cases. The only difficult interference credited to arcs was caused by the public address system. The entire Technicolor portion of the "House of Rothschild" was taken with arc lamps and the sound and pictures were made together. A viewing of this picture will satisfy any skeptic that arc lamps, even in their present condition, can be successfully used with sound.. The preparation work necessary on the "House of Rothschild" can be greatly reduced by the expenditure of a reasonable amount of money to modernize existing arc lamp equipment. When this work has once been done it will pay for itself many times over by the saving in time on the set. Considerable work has been done in the past few years by the studio electrical departments to quiet arc lamps. The electrolytic condenser and the choke coil for the elimination of commutator ripple were developed in the studios. Some of the spotlamps and sun arcs are already equipped with cutout motors. It is quite possible with the aid of fibre gears, graphite brushes and built-in choke coils, to make these lamps meet any requirement of the sound department Due to the recent demand for arc lamps, manufacturers have produced improved arc lamps and carbons. The new type broadsides and scoops used in the "House of Rothschild" and "Kid Millions" delivered 210 foot candles at 15 feet as against 55 foot candles with the old type equipment. They are silent and one operator can handle a large number of them. On a recent picture, "Nana," Gregg Toland used a new model carbon arc spotlamp within two feet of the microphone. [If the new photographic technique calls for mixed lighting, or even for 100 '/'< arc lights, the electrical department is prepared to supply the equipment.] PAUL PERRY LEAVES US Mrs. Paul Perry, wife of one of the pioneer cameramen ace9 of the motion picture industry of America, and for years operating in Hollywood, a brother of Harry Perry and popular among his fellows, departed September 11, for San Francisco whence she will sail for Manila. She goes to join her husband in Manila, where he G O E R Z | For every particular requirement of the discriminating photographer, there is one Coerz line that will yield inimitably superior results. FU P P — a new 24 page catalog of IX L L Coerr lenses for Cinematography and Photography of Yellow and Pan-Ortho Green Filters, Various Cinematic Devices, etc. SEND FOR YOUR COPY OF THIS CATAL0C NOW C. P. COERZ AMERICAN OPTICAL CO. 317 EAST 34th STREET NEW YORK L E N S E D SOUND The most approved recording slit is the New Principle MINOR QUARTZ OPTICAL UNIT Unsurpassed for fidelity to original sound. Acclaimed by independent producers. Send for details and sound track samples. C. C. MINOR Phone GL -1030 1619 Cherokee Ave., Holly wo :,d CINEX TESTINC MACHINES CINEX POLISHING MACHINES BARSAM-TOLLAR MECHANICAL WKS. 7239 Santa Monica Blvd. Phone CRanite 9707 Hollywood, California has opened a color laboratory for the processing of film shot in the Oriental countries. Paul Perry is; by no means a stranger in the Orient, where he has been on location many times for Hollywood studios, shooting stuff from India to China and Japan. Paul, here's good luck to you and your new venture. We shall miss you here at the old homestead. BAUSCH & LOMB FOLDER A new six-page folder on Bausch & Lomb Tessar Lenses has just been issued at Rochester. This folder is illustrated with examples of photography from this series of lenses and carries schematic drawings showing the arrangement of the elements in the barrel. A series of magazine advertisements is being released on these lenses. ROY DAVIDGE FILM LABORATORIES ••• An Exclusive "Daily" Laboratory Quality and Service 6701-6715 SANTA MONICA BOULEVARD GRanite 3108 Please mention The International Photographer when corresponding with advertisers.