Ad
related to: perforation of film stock
Search results
Results From The WOW.Com Content Network
Film perforations, also known as perfs and sprocket holes, are the holes placed in the film stock during manufacturing and used for transporting (by sprockets and claws) and steadying (by pin registration) the film. Films may have different types of perforations depending on film gauge, film format, and intended usage.
Film is also classified according to its gauge and the arrangement of its perforations— gauges range from 8 mm to 70 mm or more, while perforations may vary in shape, pitch, and positioning. The film is also distinguished by how it is wound with regard to perforations and base or emulsion side, as well as whether it is packaged around a core ...
The majority of 35 mm film systems, cameras, telecine equipment, optical printers, or projectors, are configured to accommodate the 4-perf system; each frame of 35 mm is 4 perforations long. 4-perf was (and remains) the traditional system, and the majority of projectors are based on 4-perf, because 4 perforations is the amount needed per frame vertically in order to have enough negative space ...
Standard 8 mm film stock consists of 16 mm film reperforated to have twice the usual number of perforations along its edges, though using the same size sprocket holes. There are 80 perforations per foot of film, exactly twice the 40 perforations per foot for 16 mm film, which gives a pitch of 0.15 in (3.81 mm) between adjacent perforations (and ...
I mean, the film perforator, when it pushes through the stock to make the holes that we use to register and move the film through the camera, causes a differentiation in the way that that emulsion ...
The edges of film stock are perforated to allow it to be moved precise distances at a time continuously. Similarly, punched cards for use in looms and later in computers input and output devices in some cases were perforated to ensure correct positioning of the card in the device, and to encode information.
EASTMAN is the film manufacturer, 5279 is the stock type identifier. The next three numbers (167) is the emulsion batch number. The next series of four digits (3301) is the roll and part code, followed by the printer identification number that made the Keykode (122) and finally a two letter date designation (KD).
Here are our top picks for stock market and Wall Street movies that every investor should watch. Each straddles the line between education and entertainment — and doesn’t skimp on either. 1.