One of Sony Artisan Miguel Quiles' favorite features on Sony mirrorless cameras is actually found on the lens. As a portrait photographer, he uses the Focus Hold button on Sony lenses to engage Continuous Eye Auto-Focus to track his subjects as they move around. Sony cameras and lenses are incredibly customizeable and Quiles' techinique is far from the only thing you can use the button for. Learn more about the Focus Hold button and how it can be customized to access any feature in your camera for seamless shooting.