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  2. List of motion picture film formats - Wikipedia

    en.wikipedia.org/wiki/List_of_motion_picture...

    Projection dimensions are the width and height of the projector aperture plate, and by extension the film frame area which is projected. The aperture plate always very slightly crops the frame. Projection lenses indicates whether spherical (normal) or anamorphic lenses are used on the projector, and if anamorphic lenses, what anamorphic power ...

  3. Film perforations - Wikipedia

    en.wikipedia.org/wiki/Film_perforations

    Their dimensions are 0.0730" (1.85 mm) in width by 0.0780" (1.98 mm) in height. [10] Due to the size difference, CS perfed film cannot be run through a projector with standard KS sprocket teeth, but KS prints can be run on sprockets with CS teeth. CS-perforated stock has fallen out of use since the 1970s when 35 mm prints with magnetic sound ...

  4. Academy ratio - Wikipedia

    en.wikipedia.org/wiki/Academy_ratio

    Academy ratio 1.375:1. The Academy ratio of 1.375:1 (abbreviated as 1.37:1) is an aspect ratio of a frame of 35 mm film when used with 4-perf pulldown. [1] [2] It was standardized by the Academy of Motion Picture Arts and Sciences as the standard film aspect ratio in 1932, although similar-sized ratios were used as early as 1928.

  5. Todd-AO - Wikipedia

    en.wikipedia.org/wiki/Todd-AO

    The IMAX format also uses 65 mm camera and lab film to create 70 mm prints for projection (also known as the 65/70 mm process); conforming to the pitch and perforation standard for 70 mm Todd-AO film. However, the IMAX frame is 15 perfs long and runs horizontally through the projector, whereas the Todd-AO frame is only 5 perfs high and runs ...

  6. List of 70 mm films - Wikipedia

    en.wikipedia.org/wiki/List_of_70_mm_films

    A special lens on a 70 mm projector added polarization and merged the two images on the screen. [1] A similar Soviet system known as Stereo 70 did not employ anamorphics, resulting in an aspect ratio of 1.37:1. [2] Stereospace 2000 (a 3D process) and Kodak-Disney 3D used dual 65 mm cameras operating at 30fps.

  7. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    Technical drawings – Axonometric projections, Isometric projection: Withdrawn: DIN ISO 5456-1, DIN ISO 5456-2, DIN ISO 5456-3, DIN ISO 5456-4: ISO 5456-1, ISO 5456-2, ISO 5456-3, ISO 5456-4: DIN 5-10: Technical drawings – projections, terms: Withdrawn: DIN ISO 10209-2: ISO 10209-2: DIN 6: Projection displays in Normal, views and special ...

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