Using the settings on a camera, we can focus on different points of an image. These different focus points can change what the main subject of an image is.

You can use the nine focus points settings to choose where you want the camera to focus on when you take the photo.

By choosing the focus of an image, the photographer can choose where they want the viewer to look first.

On a camera, you can either use manual focus or auto focus. When using manual focus, you have to change the focus dial manually to focus the image but with auto focus, the camera does it for you.