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The Revere Camera Company was founded in the early 1920s in Chicago, Illinois, as the Excel Auto Radiator Company by Ukrainian immigrant Samuel Briskin. [1] Built for Excel – and designed by Alfred S. Alschuler, [2] the manufacturing facility was located at 320 E. 21st St., Chicago, Illinois.
35mm filmstrip projectors; Overhead presentation projectors (all models) Stereo cameras and stereo slide projectors through its TDC subsidiary; Slide Cube Projector, circa 1970; In 1934, Bell & Howell introduced their first amateur 8mm movie projector, in 1935 the Filmo Straight Eight camera, and in 1936 the Double-Run Filmo 8.
With HMI bulbs, color temperature varies significantly with lamp age. A new bulb generally will output at a color temperature close to 15,000 K during its first few hours. As the bulb ages, the color temperature reaches its nominal value of around 5600 K or 6000 K. With age, the arc length becomes larger as more of the electrodes burn away.
As home video took its toll on the Super 8 scene, ELMO ceased production of their projectors, with the final models being the GS-1200 P Xenon and P Com in 1983. [6] Following this, the company began making CCD cameras in 1984, [ 1 ] introduced the EV-308 document camera in 1988, [ 7 ] and in the late 90s moved into educational technical equipment.
Kodak purchased a concept for a slide projector from Italian-American inventor Louis Misuraca in the early 1960s. [194] The Carousel line of slide projectors was launched in 1962, and a patent was granted to Kodak employee David E. Hansen in 1965. [195] Kodak ended the production of slide projectors in October 2004. [196]
Use of film remained the dominant form of cinematography until the early 21st century when digital formats supplanted the use of film in many applications. This has also led to the replacement of film projectors with digital projection. [12] Despite this, some filmmakers continue to opt for film stock as a medium of choice for aesthetic reasons.
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