Just about all digital cameras have autofocus systems, and while there’s a wide range of different autofocus (AF) technologies, the basic principles of how autofocus works is the same across all of them and boils down to two things: AF modes and AF points. AF mode: WHEN the camera focuses If you’re taking one picture […]
Continuous autofocus (C-AF)
In continuous AF (autofocus) mode, the camera continually refocuses all the time you have the shutter button half-pressed or fully-pressed. It's used in continuous shooting mode to keep moving subjects in focus as you follow them with the camera. Continuous AF mode may include subject tracking or predictive autofocus capability.
Digital cameras are usually used to take one shot at a time, but they generally offer a continuous shooting mode too. In this mode, the camera keeps taking shots in succession for as long as you hold down the shutter button. Some camera makers also call this ‘burst mode’. You’ll find it amongst a number […]