While studying at UCB, Mark quickly became focused on creating both street images and more formally lit subject matter. By the time he graduated from UCB, he was the university’s preferred photographer for student activities, the jazz festival, and publications. After graduating, he moved back to Southern California to work in the film industry while continuing to shoot stills. Mark opened a photography studio in Hollywood on the Sunset Gower lot, where he shot ads and commercials. Eventually, the studio was closed, and Mark began working full-time on film productions, quickly working his way up to Director of Photography, shooting over 1,000 commercials and 25 features in a career spanning over 30 years.