New Large-Screen and Multi-Image Motion-Picture System
A new system, designed to produce high-quality motion pictures on screens up to 85 by 120 ft, operates with standard, polyester-based, 70mm motion-picture film, projected at the standard rate of 24 frames/s. To achieve the desired picture quality and brightness within the limitations imposed by grain size and heat energy absorption of existing film, a new large format is employed which utilizes a 15-perforation “pull-across” projector (incorporating a “rolling-loop” film transport described in an accompanying paper) instead of the conventional 5-perforation pulldown. The frame size is 1.91 by 2.74 in Expo 70 visitors will see the first presentation of the system.
- Print ISSN
- 0361-4573
- Published
- 1970-09
- Content type
- Original Research
- DOI
- 10.5594/J16682
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