What is the aspect ratio?

Aspect ratio is the ratio between the width and the height of the film image. The number indicating the width is in the first place and the height part of the ratio is always written as 1. The aspect ratio often appears on the back of the DVD or video field. An example would be 1,85: 1 . This means that the size of the original theater presentation of this film is 1.85 times wide than high.

Before the early 1950s, almost all films had the ratio of aspects of 1,33: 1. This ratio was recognized by the Academy of Film Art and became known as the Standard Academy. When television standards were developing in 1941, the Committee for National Television Standards or NTSC decided that 1.33.1 would be the ratio of aspects for television ensembles and broadcasting in the United States. This ratio is also written as a 4x3 and is used on all television networks that are not wide screens. Technically, the standard ratio of the academy is really 1.37: 1, but it is still commonly referred to 1.33: 1.

In order to compete with a decline in theater in theater due to television sales, the film industry began to experiment with different formats. The ratio of widescreen aspects was the result of this experimentation and was first used in the 1950s. The broad trade is achieved by taking a rectangular image with the camera lens during filming and compressing it horizontally to fit into a square movie negative. When the film is screened in theaters, the enlargement lens on the projector restores the original aspect ratio. Many different ratios have been developed, but the two most common are 1.85: 1 and 2.35: 1.

1,85: 1, also known as an academic apartment, is rectangular than the Academy standard. 2.35: 1 is even wider and is called cinemascope, anamorphic range or range. In fact, this aspect ratio has changed to 2,39: 1 at the age of 70, when the CineMascope process was replaced by Panavision and anamorphic range, but all are still commonly referred to as 2.35: 1.

in creating a movement withIt uses many other aspect ratios, such as the European standard 1.66: 1, as well as some that have only been used for several films, such as 2.76: 1. To maintain a wide -angle view of 4x3 TVs, the entire rectangular image is displayed in the middle and black stripes fill the unused upper and lower part - the Letterbox process. The version on the entire screen can be made with the original aspect ratio at risk of filming only part of the image that fits on the 4x3 set, a technique called "Mr. And Scan". These videos contain a message explaining that the film has been edited to match the screen. Extensive TVs that have a 16x9 aspect ratio can display most wide -angle films across the screen.