Have you heard of a technique called back button focus? In this free video, world renowned outdoor photographer Ian Plant takes you on a wildlife safari in Kenya for tips on back button focus. When you are doing wildlife photography, you should use your camera’s predictive autofocus mode because this allows you to track the animal as it moves. But what if the subject doesn’t fall on one of your autofocus points? Ian solves this problem by disabling the front shutter button focus, then enabling the back button focus. Using his own camera, he shows you how this button works. Whenever you press the button, the camera will find the focus point. When you release the button, the camera will lock focus, resulting in the sharp image you were aiming to achieve.
Video: When to Use Back Button Focus for Wildlife Photography