What are an empty lens and a fixed lens? What are their uses?

An empty shot, also called a "scene shot", means that there is no one in the picture. Empty lens and conventional lens can complement each other but cannot replace each other, which is an important means for directors to clarify their ideological content, describe stories and express their feelings.

Empty lens use:

Empty shots are often used to introduce environmental background, explain time and space, express characters' emotions, promote the development of stories and express the author's attitude. They have the functions of explanation, suggestion, symbol and metaphor.

In the film, it can produce artistic effects such as metaphor, seeing the scene, melting the scene, rendering the artistic conception, setting off the atmosphere and causing association. And it also plays a unique role in changing the time and space of the picture and adjusting the rhythm of the film.

Fixed lens means that in the process of shooting a lens, the camera position, lens optical axis and focal length are fixed, and the shooting object can be static or dynamic. Its core point is that the border attached to the picture does not move.

Fix the lens? Use:

1, fixed lens is beneficial to the performance in static environment. In the editing of event news such as meeting place, celebration and accident, fixed the picture is often used to explain the place and environment of the event with a long-term vision and panorama.

2. The fixed lens can objectively record and reflect the movement speed and rhythm changes of the subject. Because the lens follows the moving subject and the background flashes by, it is difficult for the audience to compare it with some reference objects, so they lack a more accurate understanding of the speed and rhythm changes of the subject.

3. Because of its stable viewpoint and static picture, the fixed lens can easily trigger a psychological reaction that tends to be "static" through static modeling, giving the audience a deep, solemn, quiet and solemn feeling.

Extended data:

Other lens effects in the movie:

1, stunt shot?

This is a means to create all kinds of realistic and unreal screen images by using the technical performance of film cameras (including development and printing technology). Stunt shots can create certain emotional colors, emotions and atmosphere, and create specific psychological effects.

2. Slow motion:

Slow motion was shot with a high-speed camera. General lens 1 sec is 24 frames, high speed can be 48 or 96 frames, and the projection speed is still 24 frames per second, so it produces slow motion and slow motion. Photography is also called upgrading.

Step 3 shoot quickly

Contrary to slow motion, the camera shoots at a frequency lower than 24 frames per second, and when it is projected at a normal frequency (24 frames per second), it will produce a visual effect faster than the actual process, that is, the so-called "fast action lens". Photography calls it degeneration.

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