What is the depth of field in photography? How to control it?

When shooting, the image of the subject is clear within a certain range, and this distance is the depth of field.

The control of depth of field can basically start from three aspects:

1, control the aperture (aperture) size:

The larger the aperture, the smaller the depth of field. The smaller the aperture, the greater the depth of field.

2, control the size of the lens focal length:

The greater the focal length, the smaller the depth of field. On the contrary, the bigger.

3, control the shooting distance:

The closer the shooting distance, the smaller the depth of field. On the contrary, the bigger.

The specific manipulation of the camera is:

1, adjust the aperture, which is represented by the F+ number "F2.8". The number after f represents the size of the aperture. It should be noted here that the smaller the value, the larger the aperture! (Consumer DC may not have this function. If you are the owner of SLR, switch to aperture priority mode, and you can easily adjust it. )

2. As long as the lens has zoom ability, the minimum depth of field can be obtained by adjusting the focal length to the maximum. (the image point is to close the distance)

3, shooting distance, just control the distance between you and the subject.

Finally, the depth of field effect is verbose.

The greater the depth of field, the greater the range of clear images. Large depth of field, suitable for people who need a clear picture.

Why pursue a small depth of field? Small depth of field is easy to shoot the virtual and real effect. Often used in portrait shooting, it can better highlight the main body of the film. For example, in a busy street, when taking portraits, people in the foreground are materialized and the chaotic street background is blurred. Maximize the focal length and aperture, then find the distance from the subject, and finally focus. Ok ~ ~ chaotic background, let's give you a virtual ~~o(∩_∩)o together. ...

Adopt it