Abstract: A film changer for X-ray equipment or the like comprises a storage cassette for a stack of unexposed films and a receiving cassette for exposed films on opposite sides of an illumination stage. The two cassettes have sidewalls with open-ended horizontal guide grooves bounded from above by ledges with beveled undersides and flat upper surfaces supporting the respective stacks, these grooves being aligned with other grooves in a guide track flanking the exposure position to define therewith a planar transport path for a film extracted from the storage cassette and inserted after exposure into the receiving cassette.