Baxter notes that "Barry Lyndon" was the film which made Kubrick notorious for paying scrupulous attention to detail, often demanding twenty or thirty retakes of the same scene to perfect his art. Often considered to be his most authentic-looking picture, the cinematography and lighting techniques that Kubrick and cinematographer John Alcott used in "Barry Lyndon" were highly innovative. Interior scenes were shot with a specially adapted high-speed f/0.7 Zeiss camera lens originally developed for NASA to be used in satellite photography. The lenses allowed many scenes to be lit only with candlelight, creating two-dimensional, diffused-light images reminiscent of 18th-century paintings. Cinematographer Allen Daviau states that the method gives the audience a way of seeing the characters and scenes as they would have been seen by people at the time. Many of the fight scenes were shot with a hand-held camera to produce a "sense of documentary realism and immediacy".