What's the difference between photos taken by aperture size?

The difference between 1 and depth of field, the larger the aperture, such as 1.4, 1.8 and 2.0, usually the background is blurred and only the subject is clear.

2. Scenery with a small aperture, such as F8+06, is very good and clear in the distance, but the shutter requirements are different. The shutter speed of large aperture is higher than that of small aperture, and the shutter speed of small aperture is much lower.

3. The larger the aperture, the smaller the depth of field. The smaller the aperture, the greater the depth of field. The depth of field refers to the degree of blur of the background. The smaller the depth of field, the more blurred the background, that is, the lower the sharpness, and the brighter and clearer the subject. The greater the depth of field, the less blurred the background, and the higher the sharpness, the less obvious the subject embodiment.

Extended data:

It is worth mentioning that the smaller the f value of the aperture, the larger the aperture (as shown in the right figure), and the more light enters in the same unit time, and the light entering the upper level is exactly twice that of the lower level. For example, if the aperture is adjusted from F8 to F5.6, the amount of light entering will double. We also say that the aperture is enlarged by one level. The luminous flux of F5.6 is twice that of F8. Similarly, F2 is 16 times the luminous flux of F8. When F8 is adjusted to F2, the aperture is enlarged by four levels. For consumer digital cameras, the aperture f value is often between F2.8-F 1 1. In addition, many digital cameras can adjust the aperture by 1/3.

Reference link: Baidu Encyclopedia-Aperture