PRO ADVICE MOVE ACTIVE AF POINTS

When you have a static subject, you have plenty of time to consider where you’re focusing, but lots of subjects move! You can use a central AF point (or group of AF points) to lock focus and continually recompose your shot, but it also pays to move the active AF points around. If you are photographing a dog that ‘s walking around a tree, and you’re trying to keep the focus on its head, you can use your rear/top control wheel, or with some cameras an AF selector toggle/D-Pad on the back of the body, to move the active AF point’s position. This way, you can focus on the subject, or even change the area you want to be sharp, without necessarily having to totally reframe. Some cameras have more focus points than others, but even with lots of AF points available, there is still a limit to where in the frame you can actually focus.