How to focus when shooting moving objects?

Predetermined reference method: focusing the lens on the area where the moving object will pass can be divided into predefined depth of field method, area focusing method and predefined target method.

A. predetermined depth of field method: this method is suitable for photography of moving objects with low moving speed. Firstly, choose the aperture and shutter speed according to the scene light, and try to use a small aperture when conditions permit to ensure sufficient depth of field. The lens is adjusted to a preselected distance, and when the subject enters the depth of field, it will be snapped immediately.

B. area focusing method: press the area where the subject is active to focus. In order to get enough depth of field, it is best to take photos with a small aperture at a distance of 5 meters from the subject. This method can be used for moving objects with limited range of motion. Such as the balance beam in stage performances and sports competitions.

C. predetermined target method: if there is a fixed target where the subject moves, focus on the target in advance, and press the shutter once the moving object enters this field of vision. This shooting method is very suitable for sports photography, such as pole vault, high jump, hurdle and finish sprint.