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The device incorporated a rapidly spinning shutter whose purpose—as described by Robinson in his discussion of the completed version—was to "permi[t] a flash of light so brief that [each] frame appeared to be frozen. This rapid series of apparently still frames appeared, thanks to the persistence of vision phenomenon, as a moving image."
Three major problems persisted, leading to motion pictures and sound recording largely taking separate paths for a generation. The primary issue was synchronization: pictures and sound were recorded and played back by separate devices, which were difficult to start and maintain in tandem. [7] Sufficient playback volume was also hard to achieve.
Furthermore, still image films may decrease the filmmakers' limitations, as dialogue and sound effects need not be synchronized with moving images. Burns has credited documentary filmmaker Jerome Liebling for teaching him how still photographs could be incorporated into documentary films. [9]
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A film, also known as a movie or motion picture, [a] is a work of visual art that simulates experiences and otherwise communicates ideas, stories, perceptions, emotions, or atmosphere through the use of moving images that are generally, since the 1930s, synchronized with sound and (less commonly) other sensory stimulations. [1]
On the inner surface of the cylinder is a band with images from a set of sequenced pictures. As the cylinder spins, the user looks through the cuts at the pictures across. The scanning of the slits keeps the pictures from simply blurring together, and the user sees a rapid succession of images, producing the illusion of motion.
The commercial use of Movietone began when William Fox of the Fox Film Corporation purchased the entire system, including the patents, in July 1926. Despite Fox owning the Case patents, the work of Freeman Harrison Owens, and the American rights to the German Tri-Ergon patents, the Movietone sound film system utilized only the inventions of Case Research Lab.
William Friese-Greene (born William Edward Green, 7 September 1855 – 5 May 1921) was a prolific English inventor and professional photographer.He was known as a pioneer in the field of motion pictures, having devised a series of cameras between 1888–1891 and shot moving pictures with them in London.