The Canon EOS Utility is an application that allows you to interface your Mac with your digital EOS camera, allowing you to not only transfer images from it and manage them but also remotely operate the camera from your computer using Canon's interface cable. If you're a photographer who uses Canon equipment and has been unable to use the Canon EOS utility after installing OS X Lion, some good news: Canon has issued an update to the tool that allows it to run properly in Apple's latest operating system.