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Trumbull chose 70 mm film for his new process, to provide higher resolution. He also did research into frame rate , running a series of tests with 35 mm stock filmed and projected at various speeds, shown to audiences who were instrumented to biometrically test their responses.
Vinyl microgroove phonograph records typically yield 55-65 dB, though the first play of the higher-fidelity outer rings can achieve a dynamic range of 70 dB. [25] German magnetic tape in 1941 was reported to have had a dynamic range of 60 dB, [26] though modern-day restoration experts of such tapes note 45-50 dB as the observed dynamic range. [27]
A 70 mm film strip with a human hand for scale. 70 mm film (or 65 mm film) is a wide high-resolution film gauge for motion picture photography, with a negative area nearly 3.5 times as large as the standard 35 mm motion picture film format. [1] As used in cameras, the film is 65 mm (2.6 in) wide.
70 mm 1.00 unperforated spherical Friese-Greene: Wm. Friese-Greene: 1891 King's Road, Chelsea, London: 60 mm 1.325 8 round perfs, 2 sides spherical Kinetoscope horizontal: Wm. Dickson & William Heise: 1891 Dickson Greeting: 19 mm 6 perf, 1 side, horizontal spherical spherical Silent film standard: Wm. Dickson & T. Edison: 1892 Blacksmith Scene ...
56 × 70 mm 8 10 12–13 15–16 2.4 inch (60.96 mm) stock, unperforated, paper-backed 121 roll film 1902 1941 1 + 5 ⁄ 8 × 2 + 1 ⁄ 2 in 122 roll film 1903 1971 3 + 1 ⁄ 4 × 5 + 1 ⁄ 2 in 82.55 × 139.7 mm 6 or 10 Postcard format 123 roll film 1904 1949 4 × 5 in 101.6 × 127 mm 124 roll film 1905 1961 3 + 1 ⁄ 4 × 4 + 1 ⁄ 4 in
Units may scan gauges from 8 mm to 70 mm (8 mm, Super 8, 9.5 mm, 16 mm, Super 16, 35 mm, Super 35, 65 mm and 70 mm) with very high resolution scanning at 2K, 4K, 8K, or 16K resolutions. (2K is approximately 2048×1080 pixels and 4K is approximately 4096×2160 pixels).
An LP made out of perfect vinyl would have a theoretical dynamic range of 70 dB, [6] though measurements indicate actual performance in the 60 to 70 dB range. [7] [failed verification] Compare this to digital recording. Typically, a 16-bit digital recording has a dynamic range of between 90 and 95 dB. [8]: 132
The following movies were filmed using 65mm or 70mm negative stock. Titles are followed by the photographic process(es) employed. Releases produced in Todd-AO, Todd-70, Super Panavision 70 (also known as Panavision 70), Panavision System 65 (also known as Panavision Super 70), Dimension 150, Arri 765 and Superpanorama 70 (also known as MClS 70 and MCS Superpanorama 70) were photographed with ...