Famed British artist David Hockney has embraced new technologies throughout his career—everything from Polaroid cameras to fax machines—shifting between media as his own style evolves. From Oct. 2013 to Jan. 2014, the de Young Museum in San Francisco exhibited an expansive collection of Hockney’s work, “David Hockney: A Bigger Exhibition,” with a focus on his recent video art and drawings composed on iPads