Around the Lens presents Depth of Field, a monthly panel discussion podcast featuring experts from the world of photography, filmmaking and visual journalism. Each month, different panelists will discuss issues and topics that are important to those in our career field. This month, Mark Doyle moderates a panel on concert photography with Zack Lane, Kevin Wilson (kevinrcwilson.com) and Jenn Devereaux (www.JennDPhotography.com).