0 basic photography! Three elements of exposure-aperture

Aperture is a device used in the fuselage to control the amount of light entering the photosensitive surface through the lens, which is usually set in the lens. Usually we use the value of f to indicate the aperture size.

Change the f value and adjust the aperture size. The larger the aperture f value, the smaller the aperture, the less light entering and the darker the picture. The smaller the aperture f value, the larger the aperture, the more light entering and the brighter the picture.

The influence of aperture on the amount of light entering

The larger the aperture value f, the smaller the aperture, the less light entering and the darker the picture.

The smaller the aperture value f is, the larger the aperture is, and the more light enters, the brighter the picture is.

Influence of aperture on depth of field

Depth of field: it is a clear part of a photo, and the subject is more blurred. The smaller the clear part, the shallower the depth of field: the subject is less blurred, and the larger the clear part, the deeper the depth of field.

Case study on the influence of aperture on depth of field

Large aperture and small depth of field

When shooting people, you usually use a large aperture, which can highlight the main body of the person well and avoid the visual impact caused by the messy background.

Small aperture and large depth of field

In order to get a clear panoramic view of the scene, a small aperture is usually used for shooting.

A case study on the influence of aperture on star awn

The larger the aperture, the larger the spot.

Small aperture The smaller the aperture for shooting stars, the stronger the stars.