In this camera system capable of imprinting data on film, imprint data setting elements SW11 and 61 select and set imprint data, which may be film specific imprint data and/or frame specific imprint data. Commanding elements SW12 and SW13 command a first imprinting operation in which data so set is imprinted as frame specific imprint data in a predetermined imprinting position for each film frame, and command a second imprinting operation in which data so set is imprinted as film specific imprint data in another position differing from all the imprinting positions for the film frames, for example on the header portion of the film. An imprinting device 62 and 63 performs the first imprinting operation and/or the second imprinting operation according to the commands issued by the commanding elements, and a data changeover signal output device 51, when the second imprinting operation is ordered, outputs a data changeover signal before the second imprinting operation, if frame specific imprint data is set by the setting elements. Accordingly, before performing the second imprinting operation, it is possible to change over this improperly set frame specific imprint data, which has no meaning as film specific imprint data when not associated with any particular film frame, to appropriate film specific imprint data.