| Specifications at a glance - CinemaScope ® |
| Process Developer: 20th Century-Fox Film Corporation Year of Introduction: 1953 NEGATIVE SPECS: Film Gauge: 35mm Direction of travel: Vertical - four perforations - 24 fps Camera Optics: 2x Anamorphic squeeze Aperture Dimensions: .868" x .735" Max Aspect Ratio: 2.35:1 (with squeeze) - see text for early variations PRINT SPECS: Film Gauge: 35mm - Special small perforations, referred to as "Fox Holes" were used to allow room for the four magnetic sound tracks. Mono prints used standard perforations Direction of travel: Vertical - four perforations - 24 fps Projector Optics: 2x Anamorphic squeeze Aperture Dimensions: .839" x .700" nominal Max Aspect Ratio: 2.35:1 (with squeeze) - see text for early variations Sound Format: Magnetic Four Track Stereo - L, C, R stage channels and mono surround channel with trigger tone - CS perforations (2.55:1 image aspect ratio) Alt Sound Format: "Magoptical" Four Track Stereo as above, plus half width mono optical - CS perforations Alt Sound Format: Optical monophonic - Standard perforations A number of other trade named processes conform to these specifications. See "CinemaScope Clones" in the Process Filmography section.
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