Sharp focusing is essential for a successful photograph. Use focus locking to help your camera get it spot on, and avoid blurred shots.
Autofocus is a fantastic invention which has simplified photography and greatly reduced the chances of ending up with a blurry image. However, it isn’t perfect, and there are times when you’ll need to give your camera a helping hand to get a sharp picture.
Focus lock is a handy tool for doing just that. It allows you to focus on the most important part of your scene and then hold that focus while you recompose the shot, ensuring your final image has the correct parts in focus.
There are a couple of different ways to use focus lock, depending on the situation.
LOCKING FOCUS FOR A SINGLE SHOT
This is the most common use of focus lock, and the simplest to perform. It’s useful for shots like the following, where you have a subject placed off-centre in the frame, in front of a distant background.