The Great Stanley Kubrick
Much like Dennis Hopper, Stanley Kubrick got his start as a film photographer. In 1946, at the age of 18, he was the youngest staff photographer at LOOK! Magazine. Later on, when he became known as a famous director, he credited his time as a still photographer for developing his great "eye" for setting up, and filming the scenes in his movies. The full article and a gallery of his work can be found here.
Mr. Kubrick was also a technical genius. In 1966, Carl Zeiss designed a 50mm f 0.7 lens, of which they only built 10. NASA bought 6 of these lenses for the Apollo Project, Carl Zeiss kept 1 and Stanley Kubrick bought the other 3. Here is an article detailing the conversion process to adapt the lens to a BNC movie camera. With this lens, Kubrick filmed scenes lit only by candle light in the film Barry Lyndon!