Traditional Culture Encyclopedia - Photography major - Technical classification of 35 mm wide screen system
Technical classification of 35 mm wide screen system
This is an undeformable widescreen system, which uses a standard 35 mm camera and a conventional optical system to shoot. Only a window frame with a certain frame ratio is installed in front of the camera to reduce the height of the picture without changing the width. This is the simplest and most economical way to change the aspect ratio of a picture. When projecting, add a projection window with the same aspect ratio as the photographic picture on the projector, and use the projection objective to project with short focal length, so as to enlarge the picture on the big screen and obtain a wide screen effect. The aspect ratio of a widescreen screen system is usually 1.66: 1 or 1.85: 1. Its disadvantage is that the effective utilization rate of film is low, and because the projection objective with short focal length is adopted, the magnification during projection is increased and the clarity of screen picture is reduced. But it is widely used in many countries because of its convenience, economy and practicality. In recent years, it has gradually increased, replacing the deformed widescreen. We look forward to better scientific and technological development.
- Previous article:Where is the cheongsam wholesale market in Nanjing?
- Next article:Dream of Zhang Haoyang's omen
- Related articles
- How to remove the red in the photo in the later stage?
- What are the commonly used shortcut keys for C4D dynamic diagram demonstration? C4D dynamic diagram demonstrates the sharing of common shortcut keys.
- About Hangang
- What is the most touching picture in Robot Story?
- What's the difference between vivox27 and vivox27pro?
- What filter is used to shoot the sunset?
- National film photography of human body
- Do you like Ryukyu in September or Ryukyu in October?
- A tutorial on making hats from waste newspapers
- What does the end of Dali Garden mean?