Monday 11 February 2008

Digital Technology and the Film Industry

Production:
As of 2007 the most common acquisition medium for digitally projected features is 35 mm film scanned and processed at 2K or 4K via digital intermediate. Most digital features to date have been shot at 1920x1080 HD resolution using cameras such as the Sony CineAlta or Thomson Viper. New cameras such as the Arriflex D-20 and Silicon Imaging's SI-2K can capture 2K resolution images. Thus the future of digital cinema can be expected to have as a standard 4K capture and 4K projection. Currently in development are cameras capable of recording 4K RAW, such as the RED One and Dalsa Corporation's Origin.
Film is scanned from camera-original film negatives into a digital format on a scanner or high-resolution telecine. Data from digital motion picture cameras may be converted to a convenient image file format for work in a facility. All of the files are 'conformed' to match an edit list created by the film editor, and are then color corrected under the direction of the film's staff. The end result of post-production is a digital intermediate used to record the motion picture to film and/or for the digital cinema release.

Distribution
When all of the sound, picture, and data elements of a production have been completed, they may be assembled into a Digital Cinema Distribution Master (DCDM) which contains all of the digital material needed for a show. The images and sound are then compressed, encrypted, and packaged to form the Digital Cinema Package (DCP).
Digital Cinema Distribution (DCD) is the process of transmitting the DCP to theater servers via different methods that may include: hard drives, LTO data tapes, DVD-ROMs, or satellite.
Each method of distribution faces its own unique challenges and there is currently much debate regarding preferred methods. The issue can become hotly debated by advocates for the various methods and media. Currently, there is no industry or de-facto standard for distribution. This issue will likely be decided by market forces and business models. There is some testing of the various methods going on that may provide empirical data and objective analysis in the future.

Exhibition
The way in which we are experiencing films is ever-changing, for example, the new digital mastering has meant that the viewing is much more effective in making the audience less aware they are watching a film.