| 摘要 |
PROBLEM TO BE SOLVED: To provide energy saving optical equipment at a low cost without making wasteful terminals.SOLUTION: The camera is structured such that it includes: a power source terminal for supplying a power source to a lens; and communication function confirming means for confirming the communication function of the lens, and determines by the communication function confirming means whether a changeover function of the communication terminal function is available in the lens, and when determined that the changeover function is available, changes over the terminal for the power source supply supplied to the lens to the communication function with the lens. |
