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How to adjust and function the shading ring

发布时间：

2023-02-15 14:35

　　Shading ring adjustment method:

　　1. SLR and DC with manual function: dial to aperture priority mode (A or AV), and then dial the dial on the body;

　　2. Manual lens: directly rotate the aperture ring on the nose;

　　3. Some fully automatic DCs cannot adjust the aperture, and can only be determined automatically by the camera itself according to the current scene.

　　The light-shielding ring is a group of leaves, which is approximately circular and has the following functions:

　　1. Control the luminous flux: the larger the aperture (F1.4), the more light enters, and the higher shutter speed can be guaranteed in the low light environment; on the contrary, the smaller the aperture (F22), the less.

　　2. Control the depth of field: the larger the aperture, the shallower the depth of field (that is, the better the background blur is often said); the smaller the aperture, the clearer the foreground and background (small apertures are commonly used in landscape photos, such as F11~F16).

　　3. In flash photography, the aperture can also control the ratio of the flash to the ambient light. The ambient light is controlled by the shutter, and the amount of flash is controlled by the aperture.

　　Depth of field: the clear range before and after the focal plane.

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