Movie Cameras - Technical Details

Technical Details

Most of the optical and mechanical elements of a movie camera are present in the movie projector. The requirements for film tensioning, take-up, intermittent motion, loops, and rack positioning are almost identical. The camera will not have an illumination source and will maintain its film stock in a light-tight enclosure. A camera will also have exposure control via an iris aperture located on the lens. Also, there is a rotating, sometimes mirrored shutter behind the lens, which alternately passes the light from the lens to the film, or reflects it into the viewfinder. The righthand side of the camera is often referred to by camera assistants as "the dumb side" because it usually lacks indicators or readouts and access to the film threading, as well as lens markings on many lens models. More recent equipment often has done much to minimize these shortcomings, although access to the film movement block by both sides is precluded by basic motor and electronic design necessities.

The standardized frame rate for commercial sound film is 24 frames per second. The standard commercial (i.e., movie-theater film) width is 35 millimeters, while many other film formats exist. The standard aspect ratios are 1.66, 1.85, and 2.39 (anamorphic). NTSC video (common in North America and Japan) plays at 29.97 frame/s; PAL (common in most other countries) plays at 25 frame/s. These two television and video systems also have different resolutions and color encodings. Many of the technical difficulties involving film and video concern translation between the different formats. Video aspect ratios are 4:3 (1.33) for full screen and 16:9 (1.78) for widescreen.

Read more about this topic:  Movie Cameras

Other articles related to "technical details, technical, details":

In Concert, Zürich, October 28, 1979 - Technical Details
... In 2009 the 4 CD set 'Crystal Silence, The ECM Recordings 1972-79' was released, containg the three albums 'Crystal Silence' (1973), 'Duet' (1979) and the full LP-edition of 'In Concert' (1980). ...
Gravity's Rainbow - Plot Summary
... probably encountered at his work as a technical writer for Boeing, where he edited a support newsletter for the Bomarc Missile Program support unit ... The story details Pökler's annual meetings with his daughter Ilse, and his growing paranoia that Ilse is really a series of impostors sent each year to mollify him ... Through this story, we find out sparse details about the S-Gerät, including that it has an approximate weight of forty-five kilograms ...

Famous quotes containing the words details and/or technical:

    If my sons are to become the kind of men our daughters would be pleased to live among, attention to domestic details is critical. The hostilities that arise over housework...are crushing the daughters of my generation....Change takes time, but men’s continued obliviousness to home responsibilities is causing women everywhere to expire of trivialities.
    Mary Kay Blakely (20th century)

    Where there is the necessary technical skill to move mountains, there is no need for the faith that moves mountains.
    Eric Hoffer (1902–1983)