Business screen magazine (1946)

studies made by the company's Betty Crocker staff indicated that many modern homemakers had not yet learned the importance of the right pan for different bakings. Visits to homes revealed that pans of every size, age and condition were used in kitchens and the results frequently were more pastv' than pastry. These "baking failure" pans are pictured in the slidefilm. BETHLEHEM PRESENTS: (continued from pace 36) has been installed in the auditorium. Ceiling-suspended, this unit feeds through its own amplifier to the radio unit and recorders. In addition to their recording function, the two units are used for playbacks, to provide music at dinner meetings and. through the radio installation, to carry radio commentation to selected locations. A tape recorder rounds out the recording equipment. It is not connected with the system but is used mainly to bridge gaps when switching from one recording machine to the other so that no part of the talk will be lost during transcribing. .Adjoining the recording room is an acoustically designed 16mm film center. Here are facilities for showing sound films and slides to small groups. In this center, also, Bethlehem films receive attention from the time a shooting script, or outline, is made, through the projection of rushes, to editing into final form by the producer under Bethlehem's supervision. Here the producer meets with those Bethlehem representatives in whose interest the film is being made to decide upon picture and editorial treatment. The approved narration is read against the edited film before the actual recording is made. And. since no mechanical interlock exists between the 35 and 16mra projectors, the pre-interlock check must be made elsewhere. However, if a 35mm film is being produced, a "C" head on one of the projectors permits separate reels of the picture and track to be run simultaneously. The effect is that of a composite picture. Considerable inconvenience is avoided for Bethlehem people, who otherwise would have to travel to the producer's studio to view the picture. Bethlehem's experience with motion pictures goes back to the days of silent films. As early as 1917 the company recorded ordnance fragmentation tests on film for research purposes. Since its first sound film in October. 1935, Bethlehem has produced 24 full-length sound films over its familiar trademark. & 'HERES stereo motion Here are file of the components in Elgeeis Stereo-Cine package. A Basic 3-D System for Industry Elgeet "Package" Includes Stereo Lenses and Accessories Pl.\CE for low-cost sible users, must meet two basic requirements— it must be as easy to use as normal two-dimensional lenses, and it must be within the financial means of the small company as well as larger firms. Elgeet has met these requirements without sacrificing quality. Properties of Taking Lens The heart of the Elgeet CineStereo Svstem is of course, the tak pictures within the industrial organization — for safety, operational, assembly and a multitude of other technical and promotional aspects which company film personnel can serve. To meet this specific field of internal application. Rochester's Elgeet Optical Company has provided a "packaged" stereo system. Its first key advantage lies in adaptability to all standard 16mm cameras (both ""C" and Kodak mounts) and to all standard 16mni projectors. The system provides (1) a sixelement 13mm f :2.8 stereo universal focus taking lens and romboid prism assembly: (2) and f:1.6 stereo projection lens; (3) a specific finder for each type of camera to show covered field of view as seen by the stereo lens: (4) two pairs of glass Polaroid viewing glasses and six pairs of cardboard Polaroid viewers; and (5) a metallized 3-D screen. A stereo system for 16mm films, to satisfy the broadest range of pos Stereo Taking Lens mounted on a standard 16mm cine camera. rRO.ItCTIO.\ LK^^ LS at adapter sleeves for 16mm lilable with models. ing lens. It consists of a 6-element lens system rated at 13mni f/2.8. Light enters through two openings in the front of the housing and is split by a Rhomboid prism assembly before passing through the lens system, forming two images on the film corresponding to that seen by right and left eyes. By using a single lens system and prism it is impossible for one image to go out of focus in relation to the other. And the lens system has a long back focus so that it can be used M ith any camera. This design was selected by Elgeet after several years of research, development, and testing as the one offering the maximum adaptability and capable of produc ing images of the highest possible quality, depth, and definition. Optical System Anah zed The optical system of the taking lens is fully color corrected and all lens surfaces are hard coated with Elgeet s "Elcote." Click-stops on the diaphragm facilitate setting at any of the openings between f/2.8 and f/22. The diaphragm openings are adjusted to compensate for any light loss due to beam splitting so that settings will be equivalent to normal lens settings. The lens is of the universal focus type with a range of focus from 5 feet to infinity. .\ closeup attachment will be available shortly. The lens is currently available in models to fit all "C" mount cameras. The projection lens in the CineStereo consists of a twin f/1.6 lens with polaroid segments built in. All lens surfaces are hard coated. A focusing arrangement of the unit permits precise focusing of the screen image. Adapters are available to fit this lens to all standard 16mm projectors. Total Cost is Nominal In addition to the taking and projection lenses, the manufacturer supplies with each system a 26" x 36" metalized screen, a necessary item since ordinary projection screens tend to depolarize the light and reduce the three-dimensional effect. The system also includes a view finder that adapts the owner's camera to stereo filming, and eight pairs of polaroid glasses, two of which are Laminated glass viewers with plastic frames. Price of the complete system is S249.50 (S259.50 for Bolex and Bell & Howell 7(1 Series cameras). Use of the Cine-Stereo requires no special techniques other than selecting compositions that produce the best three-dimensional effects. Since the lens is fixed focus, it is only necessary to keep subjects beyond five feet. The diaphragm is set in the same manner as a normal lens and at equivalent stops. |f Inexpensive setup lor 16mm projection of silent motion piclures via Stereo-Cine. NUMBER 8 • VOLUME 11 59