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Friday, August 23, 2013

Film

        A film, also called a movie or motion picture, is a series of still images which, when shown on a screen, creates the illusion of the moving images. A film is created by photographing actual scenes with a motion picture camera. The process of film making is both art and industry. Films were originally recorded onto plastic film which was shown through a movie projector onto a large screen; more modern uses digital filming and storage, such as the red one camera which records onto hard-disk or flash cards. Films are usually created by specific cultures which reflect those cultures, and in turn , affect them. Film is considered to be an important art form, a source of entertainment, and a powerful medium for educating-or indoctrinating-citizens.Some films have become popular worldwide attractions by using dubbing or subtitles to translate the dialog into the language of the viewer.

         Preceding film in origin by thousands of years, early plays and daces had elements common to film: scripts, sets, costumes, production, direction, actors, audiences, storyboards, and scores. In mid-19th century, inventions such as the phenakistoscope and zoetrope demonstrated that a carefully designed sequence of drawing, showing phases of the change appearance of the objects in motion, would appear to show the actually moving if they were displayed one after the other at a sufficiently rapid rate.The sensitivity was gradually improved and in the late 1870's Eadweard Muybridge created the first animated image sequences photographed in real-time. A row of cameras was used, each in turn capturing one image on a glass photographic plate, which was limited by the number of cameras, about two dozen at most.

         by the end of the 1880s, the introduction of length of celluloid photographic film and the invention of  motion picture cameras, which could photograph long rapid sequence of images using only one lens, allowing several minutes of action to be captured and stored on a single compact reel of film. In the 1920s, the development of electronic sound recording technologies made it practical to incorporate a soundtrack of speech, music and sound effects synchronized with the action on the screen. Inthe early 1950s, the proliferation of the black-and -white television started seriously depressing  North American theater attendance. In attempt to lure audiences back into the theaters bigger screens were installed, widescreen processes, polarized 3D projection and stereophonic sound were introduced.

       Digital technology has been the driving force for change throughout the 1990s and into the 2000s. digital  D projection largely replaced earlier problem-prone 3D film systems and has become popular since the early 2010.

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