Digital still camera having a volatile internal memory device with a surplus area for storing photographed image data

摘要

In a digital still camera which contains an internal RAM (a volatile internal memory device) and to/from which an external RAM (a nonvolatile external memory device) is attachable/detachable, the internal RAM has a work area for an image processing process and a surplus area for storing image data photographed by the digital still camera. An image data storage device receives the image data from a photographing processing section. When the external RAM is attached to the digital still camera, an image data managing unit 31 stores the image data in the external RAM. When the external RAM is detached from the digital still camera, the image data managing unit 31 stores the image data in the surplus area of the internal RAM.