Camera system with an exchangeable lens

摘要

A camera body including a camera CPU, a detection switch and an interchangeable lens having a lens CPU are provided. The detection switch is connected to the camera CPU and is switched in response to the start of the attachment of the interchangeable lens and is switched to a reproducing state in response to the completion of the attachment of the interchangeable lens. In this case, when the interchangeable lens is attached to the camera body, the camera CPU supplies reset signals to the lens CPU in response to the switching of the detection switch. Upon the completion of the attachment of the lens, the camera CPU cancels reset signals in response to the switching of the detection switch to the reproducing state.