Why does the micro camera have "manual focusing"

After all, ai is helping you focus on autofocus, but if there are too many elements in the picture, it doesn't know where to focus on you. Manual focusing can solve this problem simply and rudely. For photographers, they have a clear demand for the pictures they want, and manual focusing is just one of the tools. Auto focus is very fast, but it still needs manual operation in some cases.

If shooting video, the current video autofocus is smooth enough. One advantage of manual focusing is that you can master the picture by yourself. Manual operation can make the video transition smooth and comfortable, without watching the automatic lens "pull the bellows" in the picture. The other is that some movie titles and old lenses with good quality can only be focused manually, and there is no automatic function.