Irving Penn created corner portraits to see how subjects reacted in an environment he constructed. Julia Margaret Cameron's portraits from the 1800s had unconventional intimacy and visual blur achieved through long exposures and intentional lens focus. Richard Avedon is renowned for reinventing portrait photography through minimal details and eliciting essence. His portraits provide an intimate view of famous subjects. Lee Friedlander captures hard labor and struggle in butcher portraits through etched features and bodies as landscapes.