What does it mean to set the camera to focus once every 10 second?

As the name implies, it focuses every 10 second. If you don't focus, the shot image is virtual and can only be focused once. Because the subject may be people, vehicles, animals and other moving objects, the focal length will change from time to time and need to be focused at any time. In fact, 10 second focusing is a very common function. Most modern cameras track autofocus in real time, that is, focus once every second. This is the most advanced function, which can ensure the best video clarity.

Note that this focusing function needs to be turned off in some shooting situations, and manual focusing is needed to fix the focal length. For example, when shooting a specific object in many scenes, such as the main model in the street crowd, if it is autofocus, it is easy to cause the camera to focus on other objects by mistake, which will affect the clarity of the shooting object. Therefore, functions such as/kloc-focusing once every 0/0 second require the photographer to master the application flexibly, which is not static.