Misplaced Pages

Prizma

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.

The Prizma Color system was a color motion picture process , invented in 1913 by William Van Doren Kelley and Charles Raleigh. Initially, it was a two-color additive color system , similar to its predecessor, Kinemacolor . However, Kelley eventually transformed Prizma into a bi-pack color system that itself became the predecessor for future color processes such as Multicolor and Cinecolor .

#710289

32-515: Prizma gave a demonstration of color motion pictures in 1917 that used an additive four-color process, using a disk of four filters acting on a single strip of panchromatic film in the camera. The colors were red, yellow, green, and blue, with overlapping wavelengths to prevent pulsating effects on the screen with vivid colors. The film was photographed at 26 to 32 frames per second, and projected at 32 frame/s. The disk used in projection consisted mainly of two colors, red-orange and blue-green, adapted to

64-401: A panchromatic sensor is an image sensor or array of sensors that combine the visible spectrum with non-visible wavelengths, such as ultraviolet or infrared . Images produced are also black and white, and the system is used for its ability to produce higher resolution images than standard digital sensors. A panchromatic emulsion renders a realistic reproduction of a scene as it appears to

96-401: A panchromatic sensor is an image sensor or array of sensors that combine the visible spectrum with non-visible wavelengths, such as ultraviolet or infrared . Images produced are also black and white, and the system is used for its ability to produce higher resolution images than standard digital sensors. A panchromatic emulsion renders a realistic reproduction of a scene as it appears to

128-466: A color film (usually a short) every week, a film which would be projectable on any standard projector. Kelley's idea was two years in the making, but was a valid one which became the springboard for all future color systems to follow — two films were filmed simultaneously with a camera of his own design. One strip was sensitive to red-orange, the other to blue-green ( cyan ). Both negatives were processed and printed on duplitized film , and then each emulsion

160-540: A colored disc again in synchronization with the black and white color record film, and through persistence of vision , the two frames combined on the screen to form a color image. The first film shown in Prizma color was the feature Our Navy at the 44th Street Theatre in New York City on 23 December 1917. General reception to the system was positive, but the rotating filter wheel technique proved impractical. To counteract

192-576: A regular stock in 1922. The first black-and-white feature film photographed entirely on panchromatic stock was The Headless Horseman (1922). But early panchromatic stock was more expensive, had a relatively short shelf-life, and was more difficult for laboratories to process because it required working in total darkness. Not until the prices were equalized by competition in 1926 did it become used more widely than orthochromatic stock. Kodak discontinued manufacturing general-purpose orthochromatic motion picture film in 1930. Digital panchromatic imagery of

224-576: A regular stock in 1922. The first black-and-white feature film photographed entirely on panchromatic stock was The Headless Horseman (1922). But early panchromatic stock was more expensive, had a relatively short shelf-life, and was more difficult for laboratories to process because it required working in total darkness. Not until the prices were equalized by competition in 1926 did it become used more widely than orthochromatic stock. Kodak discontinued manufacturing general-purpose orthochromatic motion picture film in 1930. Digital panchromatic imagery of

256-611: A set of prisms on his rig, thus expanding his point of convergence, and utilized his red/blue color system to make an anaglyphic print of his product. His final product was the first of Kelley's Plasticon Pictures entitled Movies of the Future , which was premiered at the Rivoli on 24 December 1922. The film consisted largely of shots of New York City , including Times Square , the New York Public Library , and Luna Park . Based on

288-529: The Earth 's surface is also produced by some modern satellites, such as QuickBird , Cartosat and IKONOS . This imagery is extremely useful, as it is generally of a much higher (spatial) resolution than the multispectral imagery from the same satellite. For example, the QuickBird satellite produces panchromatic imagery having a pixel equivalent to an area 0.6 m × 0.6 m (2 ft × 2 ft), while

320-431: The Earth 's surface is also produced by some modern satellites, such as QuickBird , Cartosat and IKONOS . This imagery is extremely useful, as it is generally of a much higher (spatial) resolution than the multispectral imagery from the same satellite. For example, the QuickBird satellite produces panchromatic imagery having a pixel equivalent to an area 0.6 m × 0.6 m (2 ft × 2 ft), while

352-521: The Technicolor Corporation in September 1922 on the grounds that Technicolor was infringing upon Prizma's patents. However, Prizma eventually lost the case. In April 1923, Robert Flaherty took both a black-and-white camera and a Prizma color camera to Samoa , hoping to film part of his documentary film Moana (1925) in that process, but the Prizma camera malfunctioned and no color footage

SECTION 10

#1732851964711

384-530: The multispectral pixels represent an area of 2.4 m × 2.4 m (8 ft × 8 ft). Panchromatic A panchromatic emulsion is a type of photographic emulsion that is sensitive to all wavelengths of visible light , and produces a monochrome photograph —typically black and white. Most modern commercially available film is panchromatic, and the technology is usually contrasted with earlier methods that cannot register all wavelengths, especially orthochromatic film . In digital imaging,

416-687: The 3D gimmicks that the recent films of that nature included. The last few years of Prizma were somewhat fruitful. Samuel Goldwyn produced Vanity Fair (1923) in Prizma, and D. W. Griffith utilized the process in a couple of his films, including a scene in Way Down East (1920). Flames of Passion (1922), directed by Graham Cutts and starring Mae Marsh and C. Aubrey Smith ; The Virgin Queen (1923), directed by J. Stuart Blackton ; and I Pagliacci (1923), co-starring Lillian Hall-Davis , were all UK productions with one reel filmed in Prizma. One of

448-435: The four-color process by the superimposition of two small magenta filters over one of the red sectors and two similar blue filters over one of the blue-green sectors. Motion Picture News reported, The first commercial system of Prizma was similar to Kinemacolor in that the camera took alternating frames of red-orange and blue-green colors through color filters placed within the camera's shutter. Projection involved running

480-401: The human eye, although with no colors. Almost all modern photographic film is panchromatic. Some older types of film were orthochromatic and were not sensitive to certain wavelengths of light. As naturally prepared, a silver halide photographic emulsion is much more sensitive to blue and UV light than to green and red wavelengths. The German chemist Hermann W. Vogel found out how to extend

512-401: The human eye, although with no colors. Almost all modern photographic film is panchromatic. Some older types of film were orthochromatic and were not sensitive to certain wavelengths of light. As naturally prepared, a silver halide photographic emulsion is much more sensitive to blue and UV light than to green and red wavelengths. The German chemist Hermann W. Vogel found out how to extend

544-596: The issue of having a special projector with a filter wheel, Kelley began tinting alternate frames of his film red and green. However, fringeing, flicker, and light loss were major issues which plagued not only Prizma, but also all of the other additive systems of the Kinemacolor nature. In counteracting this, Kelley had filed a patent in February 1917 which proved to be the foundation of Prizma's second color system. On 28 December 1918, Kelley announced that Prizma would release

576-619: The last films using Prizma was Venus of the South Seas (1924), starring Annette Kellerman , where Prizma was used for one reel of a 55-minute film. Venus was restored by the Library of Congress in 2004. In 1928, Prizma was bought by Consolidated Film Industries and was reintroduced as Magnacolor (and later Trucolor ). Kelley, who held many patents in color photography, sold his patents and equipment to Cinecolor , which benefited from Kelley's advanced printing techniques. Ironically, Cinecolor

608-514: The manufacturer had to be passed through a color-sensitizing solution, a time-consuming process that increased the film's cost from 3 cents per foot to 7 cents. Eastman Kodak , the supplier of motion picture film, introduced a panchromatic film stock in September 1913, available on special order for photographing color motion pictures in additive systems. Photographers began using it for black-and-white films too in 1918, primarily for outdoor scenes. The company introduced Kodak Panchromatic Cine Film as

640-514: The manufacturer had to be passed through a color-sensitizing solution, a time-consuming process that increased the film's cost from 3 cents per foot to 7 cents. Eastman Kodak , the supplier of motion picture film, introduced a panchromatic film stock in September 1913, available on special order for photographing color motion pictures in additive systems. Photographers began using it for black-and-white films too in 1918, primarily for outdoor scenes. The company introduced Kodak Panchromatic Cine Film as

672-542: The sensitivity into the green, and later the orange, by adding sensitising dyes to the emulsion. By the addition of erythrosine the emulsion could be made orthochromatic while some cyanine derivatives confer sensitivity to the whole visible spectrum making it panchromatic. However, his technique was not extended to achieve a fully panchromatic film until the early 1900s, shortly after his death. Panchromatic stock for still photographic plates became available commercially in 1906. The switch from orthochromatic film, however,

SECTION 20

#1732851964711

704-542: The sensitivity into the green, and later the orange, by adding sensitising dyes to the emulsion. By the addition of erythrosine the emulsion could be made orthochromatic while some cyanine derivatives confer sensitivity to the whole visible spectrum making it panchromatic. However, his technique was not extended to achieve a fully panchromatic film until the early 1900s, shortly after his death. Panchromatic stock for still photographic plates became available commercially in 1906. The switch from orthochromatic film, however,

736-561: The success of Movies of the Future , Kelley had his chief photographer, William T. Crispinel, shoot another short film entitled Through the Trees — Washington D.C. in the spring of 1923. The film was not shot with the Prizma rig — which was being used by Flaherty in Samoa — but with one designed by Frederic E. Ives , a technician specializing in 3D photography. Although the short was technically shot better, Riesenfeld rejected it because it did not have

768-603: The system. The Prizma process only took off in 1922, when J. Stuart Blackton of Vitagraph Studios shot his feature film The Glorious Adventure in Prizma. The film, starring Diana Manners and Victor McLaglen , premiered in April 1922 to lukewarm success in the US, but much appeal in the UK. With the prestige of a Vitagraph production, Prizma was considered the apex of color photography at that point in motion picture producers' minds. Prizma sued

800-627: The total amount of light and increased the necessary exposure time. Orthochromatic film proved troublesome for motion pictures, rendering blue skies as perpetually overcast, blond hair as washed-out, blue eyes nearly white, and red lips nearly black. To some degree this could be corrected by makeup, lens filters, and lighting, but never completely satisfactorily. But even those solutions were unusable for additive color motion picture systems like Kinemacolor and Prizma color , which photographed on black-and-white stock behind alternating color filters. In those cases, negative film stock after it arrived from

832-627: The total amount of light and increased the necessary exposure time. Orthochromatic film proved troublesome for motion pictures, rendering blue skies as perpetually overcast, blond hair as washed-out, blue eyes nearly white, and red lips nearly black. To some degree this could be corrected by makeup, lens filters, and lighting, but never completely satisfactorily. But even those solutions were unusable for additive color motion picture systems like Kinemacolor and Prizma color , which photographed on black-and-white stock behind alternating color filters. In those cases, negative film stock after it arrived from

864-629: Was toned its complementary color , red or blue. The final result was a color image that was subtractive in nature — no flicker and a bright projection. But as a result of the way the camera was designed, a constant fringe was apparent, as the strips were being recorded side-by-side. In January 1919, this new process was premiered at the Rivoli Theatre in New York City with the short Everywhere With Prizma . Kelley, based in Jersey City, New Jersey ,

896-509: Was a friend of the Rivoli's manager and music director Hugo Riesenfeld and so did business with Samuel Roxy Rothafel 's Roxy Theaters chain, which the Rivoli was part of. In February 1921, another Prizma film, Bali, the Unknown was premiered at Roxy's Capitol Theatre in New York. The four-reel feature garnered lukewarm reviews, but enough positive audience response that more films were produced in

928-494: Was co-founded by Kelley's former photographer, William T. Crispinel. Panchromatic A panchromatic emulsion is a type of photographic emulsion that is sensitive to all wavelengths of visible light , and produces a monochrome photograph —typically black and white. Most modern commercially available film is panchromatic, and the technology is usually contrasted with earlier methods that cannot register all wavelengths, especially orthochromatic film . In digital imaging,

960-414: Was only gradual. Panchromatic plates cost two to three times as much, and had to be developed in total darkness, unlike orthochromatic—which, being insensitive to red, could be developed under a red light in the darkroom. And the process that increased the film's sensitivity to yellow and red also made it oversensitive to blue and violet, requiring a yellow-red lens filter to correct it, which in turn reduced

992-414: Was only gradual. Panchromatic plates cost two to three times as much, and had to be developed in total darkness, unlike orthochromatic—which, being insensitive to red, could be developed under a red light in the darkroom. And the process that increased the film's sensitivity to yellow and red also made it oversensitive to blue and violet, requiring a yellow-red lens filter to correct it, which in turn reduced

Prizma - Misplaced Pages Continue

1024-578: Was shot. ( Moana became famous as the second feature film shot using panchromatic black-and-white film rather than orthochromatic .) With Harry K. Fairall and Robert F. Elder's 3D feature, The Power of Love , opening 27 September 1922 in Los Angeles and the December 1922 unveiling of Laurens Hammond 's Teleview system in New York City , Kelley used his Prizma camera for stereoscopic purposes. As his camera took side-by-side pictures, Kelley mounted

#710289