A display device adapted for use with a camera is equipped with circuitry for monitoring and controlling camera operation. The display device includes a display unit having a first display part which shows a photographic mode indication, a second display part which shows calendar information (e.g., date and time information), and a connector designed to electronically connect the display device to the circuitry. The connector is mounted in the camera in parallel relation to the first display part and to the second display part. The second display part is mounted near the connector and in closer proximity to the connector than the first display part. Additionally, a control device for controlling the drive characteristics of a display device adapted for use in a camera is provided. The control device includes a plurality of main contacts which are connected to at least one of a first display device which has a respectively associated plurality of contacts and which displays date information and a second display device which has a respectively associated plurality of contacts and which displays photographic information other than date information. Additionally, the control device includes a drive unit which causes date information to be displayed on the first display device when the plurality of main contacts are connected to the respectively associated plurality of contacts of the first display device, and which causes photographic information other than date information to be displayed on the second display when the plurality of main contacts are connected to the respectively associated plurality of contacts of the second display.