Margaret Honda’s Film Path drawings show the paths that motion picture film follows as it passes through different cameras, moving from unexposed raw stock to exposed footage. A film path maps the interior space of a camera, a space whose ability to produce visible images requires that it remain invisible while in use. Honda traced the 63 drawings from the diagrams in the seventh (1993) and tenth (2015) editions of the American Cinematographer Manual. They’re framed in groups following the order in the Manuals: by gauge—35mm, 16mm, and 65mm—and within each gauge the cameras are alphabetical by manufacturer and model; VistaVision and IMAX, as special formats, come last.