Griffith revolutionized filmmaking by introducing close-ups. [1] He argued that when watching a scene, viewers' eyes move between characters' faces and actions, so the camera should mimic this movement through close-ups rather than remaining static. [2] Griffith asked why the camera couldn't provide close views of characters' expressions and actions, like an engagement ring being presented, the way the human eye sees details. [3] Some critics doubted audiences would accept close-ups, but Griffith helped establish them as an essential cinematic technique.