William Kennedy Laurie Dickson (3 August 1860 – 28 September 1935) was a British-American inventor who devised an early motion picture camera under the employment of Thomas Edison.
William Kennedy Laurie Dickson (3 August 1860 – 28 September 1935) was a British-American inventor who devised an early motion picture camera under the employment of Thomas Edison.
35 mm film is a film gauge used in filmmaking, and the film standard. In motion pictures that record on film, 35 mm is the most commonly used gauge. The name of the gauge is not a direct measurement, and refers to the nominal width of the 35 mm format photographic film, which consists of strips 1.377 ± 0.001 inches (34.976 ± 0.025 mm) wide. The standard image exposure length on 35 mm for movies ("single-frame" format) is four perforations per frame along both edges, which results in 16 frames per foot of film.
A variety of largely proprietary gauges were devised for the numerous camera and projection systems being developed independently in the late 19th and early 20th centuries, along with various film feeding systems. This resulted in cameras, projectors, and other equipment having to be calibrated to each gauge. The 35 mm width, originally specified as 1+3⁄8 inches, was introduced around 1890 by William Kennedy Dickson and Thomas Edison, using film stock supplied by George Eastman. Film 35 mm wide with four perforations per frame became accepted as the international standard gauge in 1909, and remained by far the dominant film gauge for image origination and projection until the advent of digital photography and cinematography.
Louis Aimé Augustin Le Prince (French: [lwi l(ə) pʁɛ̃s]; 28 August 1841 – disappeared 16 September 1890; declared dead 16 September 1897) was a French artist and the inventor of an early motion-picture camera, and director of Roundhay Garden Scene. He was possibly the first person to shoot a moving picture sequence using a single lens camera and a strip of (paper) film. He has been credited as the "Father of Cinematography" but, due to his disappearance in 1890, his work did not influence the commercial development of cinema.
In October 1888, Le Prince filmed moving-picture sequences of family members in Leeds, in the 1888 short film Roundhay Garden Scene, and of his son Louis playing the accordion, using his single-lens camera and Eastman's paper negative film. In the next eighteen months, he also made a film of Leeds Bridge. His work appears to precede the inventions of his contemporaries, such as Friese-Greene and Donisthorpe as well as being years ahead of the Lumière brothers and Dickson (who did the moving image work for Thomas Edison). Le Prince disappeared on 16 September 1890. Numerous conspiracy theories emerged about his disappearance, including murder, disappearance in order to start a new life, and suicide. However, no conclusive evidence was found for any of these theories.