How to choose the right focus for Canon camera 6D2?

Manually turn the focus ring to adjust the camera lens.

A focusing method that adjusts the camera lens by manually rotating the focusing ring to make the shot photos clear depends largely on the judgment of the human eyes on the image on the focusing screen, the proficiency of the photographer and even the photographer's vision. SLR digital cameras are equipped with manual focusing function to meet different shooting needs.

In principle, focusing is equivalent to focusing, that is, changing the image distance v to form a clear image on the negative. Changing the focal length of a lens means changing the viewing angle of the lens. The principle is to add a family of movable lenses to the lenses of the lens; Focusing is to adjust the authenticity of the image, that is, to change the distance between the lens and the imaging surface, so as to make the image clear.

Extended data:

Camera focusing process:

1, single autofocus is mainly used for shooting scenery, still life, etc. After the photographer finishes focusing by half pressing the shutter, pressing the shutter fully is a complete shooting process, and the camera's autofocus system will stop working.

2. Artificial intelligence servo autofocus is born for shooting moving objects. After the camera is focused, the focusing system is still in working condition. As long as we keep the camera's focus frame always on the subject, the camera can ensure that the focus is always clear.

3. Artificial intelligence autofocus mode, which combines the advantages of single autofocus and artificial intelligence servo autofocus, automatically selects the focus mode according to the moving speed of the subject, selects single autofocus when the subject is still, and selects artificial intelligence servo autofocus when the subject is moving.

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