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Two frames of a vertical filmstrip take up roughly the same amount of space as a single frame on the horizontal. Including its guard band, a vertical filmstrip could contain up to 64 images, while a horizontal oriented strip usually contained 32 images. This is based on the equivalent of a 25 exposure length of 35mm still camera film.
The film strips, or film cards, were fed through a slide viewer similar to a View-Master, which was art deco or streamlined in style. The viewers were made of bakelite and available in multiple colors. When held up to light the images appeared in 3D. The films were based on attractive scenery, children's stories, travel, night life, and current ...
The strips can then be rearranged and laid out sequentially to represent the order one wants to film in, providing a schedule that can be used to plan the production. [1] This is done because most films are shot "out of sequence," meaning that they do not necessarily begin with the first scene and end with the last. [ 2 ]
Gasparcolor, a single-strip 3-color system, was developed in 1933 by the Hungarian chemist Dr. Bela Gaspar. [20] The real push for color films and the nearly immediate changeover from black-and-white production to nearly all color film were pushed forward by the prevalence of television in the early 1950s.
In bipack color photography for motion pictures, two strips of black-and-white 35 mm film, running through the camera emulsion to emulsion, are used to record two regions of the color spectrum, for the purpose of ultimately printing the images, in complementary colors, superimposed on one strip of film.
During development, the exposed silver salts are converted to metallic silver, just as with black-and-white film. But in a color film, the by-products of the development reaction simultaneously combine with chemicals known as color couplers that are included either in the film itself or in the developer solution to form colored dyes.
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As a bipack color process, the photographer loaded a standard camera with two film stocks: an orthochromatic strip dyed orange-red and a panchromatic strip behind it. The orthochromatic film stock recorded only blue and green, and its orange-red dye (analogous to a Wratten 23-A filter) filtered out everything but orange and red light to the panchromatic film stock.