https://www.fdphotostudio.com/button-remapping-with-david-bergman/?no_create_html_cache=1 In this quick tutorial photographer David Bergman from AdoramaTV teaches about the importance of button programming and customization on your camera. Mr. Bergman shares: "I will  show you how to customize buttons on Canon 5d Mark 3, but you'll find that many other cameras have similar options. If you dig deeply into your camera menus, [...]