It is considered a ‘lost’ film and only a few frames are known to survive. The first feature-length all-Technicolor production, The Gulf Between, was first shown in 1917. These matrices were then dyed with the subtractive primaries, yellow (for blue negative), magenta (for green negative) and cyan (for red negative) and used to print the colour print. Technicolor, devised principally by Herbert Kalmus (18821963), was the first widely successful color film process. These reproduced all the tones as different levels of hardened gelatin - the highlights were clear of gelatin. Subsequently, a dye matrix positive was made from each processed negative on bichromated gelatin film. There were three strips of film running at all times for the technicolor process, and the camera that was used was massive. Its base was dyed orange to filter out the blue so that only red light was received by the panchromatic film behind it. it was sensitive only to blue and green) so it only recorded the blue part of the magenta light. Later Technicolor films such as Quo Vadis (1951), The Robe (1953), The Ten Commandments (1956), Ben-Hur (1959), Spartacus (1960) and King of Kings (. The film which recorded the red separation was panchromatic, like that used to recorded the green separation, but the other was orthochromatic (i.e. Note the well-preserved skin tones typical of two-colour Technicolor in (3). Plate (2) shows a colour restoration of a single frame from the notebook. The colour imbalance in (1) is likely due to fading. Film samples found in the Subtractive/Plant Notes notebook. At right-angles to the lens was laced with two films placed back to back (known as bi-packing) and received light through a magenta (i.e. The Technicolor Notebooks at the George Eastman House (pp. Directly behind, the lens recorded the green separation through a green filter. It evolved through four versions, culminating in this three-colour camera, which used a beam splitter behind the lens with red, green and blue filters to record the primary colours on three separate monochrome films. Technicolor, introduced in 1915, is regarded as the finest colour motion picture process. Main body of Technicolor three strip camera, made in America by the Technicolor Corporation about 1932.
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