| 摘要 |
PURPOSE:To simplify the starting operation by starting one of a camera body and a camera accessory in response to starting of the other when the other is started by the manual operation. CONSTITUTION:When a switch S1 of a camera body BD is turned on by the manual operation, the low level is inputted to a signal line of a camera control circuit BMC to start the circuit BMC. When the circuit BMC is started, it sets a signal line CSB to the low level. When the line CSB is set to the low level, a gate circuit G2 is opened to make is possible to transmit and receive data between the body BD and a camera accessory BCKC, and the signal on the line CSB starts an accessory control circuit of the accessory BCKC. Meanwhile, a signal in the low level is given to terminals T2 and T7 of the body BD from the accessory control circuit when this circuit is started by the manual operation. Then, the gate G2 is opened and the circuit BMC is started. |
