What are the three ways to adjust the aperture of camera lens?

There are two ways to adjust the aperture of camera lens: automatic adjustment and manual adjustment. According to different subjects, reasonable adjustment methods can achieve the best results.

Make photos brighter: Aperture can also control the amount of light entering the camera. A larger aperture can make a photo brighter, so if you feel that the light is insufficient when taking a photo, turn up the aperture (each lens has a maximum aperture value).

Make photos clearer: A large aperture makes photos more artistic, and a small aperture makes photos clearer, which is common in group photos and commercial products.

Extended data

Aperture is a device used to control the amount of light entering the photosensitive surface of the fuselage through the lens. Generally, in the lens, we use the f value to represent the aperture size. It is the scale value corresponding to the aperture value, which is formulated for the convenience of calculating the exposure value in actual photography and represents the light passing ability of the lens.

Because the aperture value changes in multiples of 2, if the aperture value is directly used to represent the luminous flux of the lens, it will be difficult to calculate the exposure value in actual photography. The aperture value is usually AV (abbreviation of "aperture value" in English). According to the square relationship between the area and radius of a circle, it can be known that the aperture diameter should be equal to about 1.4, and the coefficient relationship is increasing.