How to understand the focusing and snapshot functions of SLR cameras?

The so-called focus point refers to the autofocus point of the camera, that is, the autofocus equipment in the camera with autofocus function-the electronic induction device in the focus sensor. The number and performance of autofocus points in the camera reflect the strength of autofocus function and the grade of the camera to a certain extent.

Snapping is a photographer's quick response to the process of photography. It is not rigorous to say that SLR cameras have a "snap function"-no camera has such a function. It can only be said that a camera with strong autofocus function is more convenient to capture.

The above comments are for reference only.