Imax Movies - Twilight Saga

By Author: Jamie Hanson
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Imax is a projection norm and motion picture file format originated by the Canadian Imax corporation. The company's activities include the design, marketing, leasing, operation and maintenance of Imax film and digital theatre systems as well as the production, development, distribution, post production of Imax motion pictures. Imax has the magnitude to record and display images of much larger size and resolution than most customary film systems. A standard Imax screen is 22m x 16.1 m, but it varies. Imax theatres are either of "Multiplex design" (existing multiplexes that have been renovated with Imax technology) or "Classic design" (Structures built and designed purposely to house an Imax theatre). Imax screens in multiplex design locations vary in size from 47 ft x 24 ft - 74 ft x 46 ft, whereas Imax screens in classic design locations vary in size from 51 ft x 37 ft - 117 ft x 96 ft. The world's largest Imax screen (as well as cinema screen) is in the LG corporation Imax theatre in Sydney, New South Wales. It is nearly 8 stories high, with measurement of 117.2 ft x 96.5 ft and surrounds an area of more than 10,930 square ...
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Imax is the most extensively used system for distinguished-venue film presentations. Until December 2009, there were more than 400 Imax theatres spanning 40 countries. Imax corporation has issued four projectors types that use its 15- splits, 70 mm film format namely, SR (Small Rotor), GT 3D (dual rotor), GT (Grand Theatre), and MPX, which was designed to be fitted in existing multiplexes. In July 2008, Imax Corporation introduces a digital projection system built for multiplex theatres with screen size not wider than 70 ft (21.3 m). This projection system does not have a brand or distinctive name. All Imax projectors can project 3D images, except the standard GT system. Most Imax theatres have rectangular, flat screens, however Imax Dome theatres (earlier branded as Omnimax) uses a GT projector with a fish-eye lens to project an image on an inclined hemispheric dome screen. Imax also has an extraordinary technique in which the viewer is placed (virtually) in the movie, using seat movement or vibration at particular points in the film.

Imax 3D
The Imax 3D process two-camera lenses to represent the right and left eyes, to create the illusion of 3-dimensional effect. The two lenses divided by a distance of 2.5 inches (64 mm), approximately the average distance between a human's eyes. By recording on two isolate rolls of film for the right and left eyes, and then projecting them at the same time, viewers experience seeing a 3-dimensional image on a 2-dimesional screen. The Imax 3-dimensional camera is heavy, weighing more than 250 lbs (113 kg), and makes it problematic to film on-location documentaries. There are two processes for 3-dimensional illusion in theatres. The first one involves polarization, in which, during projection, the right and left eye images are linearly polarized when they are projected onto the Imax screen. The second one involves the use of LCD shutter glasses.

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