Patent ID: 7636518

Claim:
A digital camera including a lens unit having a taking lens and a solid state imaging device and outputting image data, and a camera body to which said lens unit is removably attached and storing said image data, said digital camera comprising: a wireless communication device for sending and receiving data between said lens unit and said camera body via radio waves; a one-way communication device for communicating data faster than said wireless communication device in one direction from said lens unit to said camera body when said lens unit is attached to said camera body; a lens detector for detecting attachment/detachment of said lens unit to/from said camera body; and a controller for controlling the data communication, said controller controlling said wireless communication device to send and receive control signals between said lens unit and said camera body via said radio waves while controlling said one-way communication device to send image data obtained with said lens unit to said camera body when the attachment of said lens unit is detected by said lens detector, said controller controlling said wireless communication device to send and receive said control signals between said lens unit and said camera body via said radio waves and to send said image data to said camera body via said radio waves when the detachment of said lens unit is detected by said lens detector.