Abstract: A microfilm camera comprises a camera head and a document support. The camera head includes a film transport mechanism for intermittently feeding a strip of microfilm past an exposure station at which an aperture plate is disposed. The aperture in the aperture plate is adjustable in one of at least two different sizes by means of a masking flap supported for movement between a first size position, in which a portion of the aperture is shielded, and a second size position in which the masking flap is clear from the aperture. When a document of a relatively small size is placed on the document support, the masking flap is in the first size position, but when a document of a relatively large size is placed on the document support, the masking flap is in the second size position.

Abstract: A cartridge handling device adapted to be loaded with a cartridge having a roll film wound therein for feeding out the film from the cartridge is characterized by a misloading preventing member provided in a cartridge mount of the device and engageable in an opening formed in the side face of the cartridge toward the proper direction of loading to thereby permit the cartridge to be loaded as oriented only in the proper direction.