What's the difference between a focal plane and a picture?

The difference between the focal plane and the picture is that the interpretation is different and the picture is different.

First of all, explain the differences.

1, focal plane: The focal plane consists of a series of glass or transparent substances. Its task is to focus all kinds of light directed at the lens on the focal plane and make the film sensitive.

2. Cinematography: Cinematography refers to a film with a visual image, which can express a certain meaning and can be combined with the upper and lower shots.

Second, the picture is different.

1, focal plane: the frame of the lens is a horizontal rectangle. The aspect ratio of ordinary screen movies is 1: 1.375, that of widescreen movies is 1: 2.35, and that of 70mm movies is 1: 2.2. Individual shots are shot by special methods such as occlusion, and special pictures such as circle, triangle, vertical row and multi-screen can be obtained.

2. Movie screen: A screen can be a few minutes, a few seconds, or even only a few frames in less than a second. Such as lightning and shelling, three or five frames can form a picture. The ratio of the pictures on the film, that is, the ratio of the screen, is 3× 4( 18×24), which is commonly known as the "golden ratio".

Extended data

Sport style of Fox aircraft;

1, shaking-center position unchanged, omni-directional translation;

2. Push and pull-push or pull the subject to shoot with a moving car or photographer moving around;

3. Stretch and shrink-Take photos from far to near or from near to far by adjusting the zoom lens. The result of shooting is different from that of pushing and pulling the lens in perspective;

4. Move-don't follow an object, move vertically and horizontally to shoot;

5. Follow-shoot with one or several moving objects;

6. Ascending and Descending-On the elevator, shooting in the movement of ascending or descending.