高中英语 Unit1 Building the future文化背景35 mm film素材 牛津译林版选修10-牛津版高三选修10英语素材

35 mm film35 mm film is the basic most commonly used for both still and , and remains relatively unchanged since its introduction in 1892 by and , using supplied by . The is cut into strips 35 millimeters (about 1 3/8 inches) wide — hence the name. The standard for movies ("single-frame" format) is four per along both edges, which makes for exactly 16 frames per foot (for stills, the standard frame is eight perforations).A wide variety of largely proprietary gauges were used by the numerous camera and projection systems invented independently in the late 19th century and early 20th century, ranging from 13 mm to 75 mm (0.51–2.95 in). 35 mm was eventually recognized as the international standard gauge in 1909, and has remained by far the dominant film gauge for image origination and projection despite threats from smaller and larger gauges, and from novel formats, because its size allows for a relatively good tradeoff between the cost of the and the quality of the images captured. The ubiquity of 35 mm in commercial makes it the only motion picture format, film or video, which can be played in almost any cinema in the world.The gauge is remarkably versatile in application. In the past one hundred years, it has been modified to include sound, redesigned to create a safer , formulated to capture color, has accommodated a bevy of widescreen formats, and has incorporated digital sound data into nearly all of its non-frame areas. Since the beginning of the 21st century, and have held a in the manufacture of 35 mm motion picture film.