| 摘要 |
PURPOSE:To simplify the device and to reduce the cost by constituting the title controller so that a detection of a rotational position of a driving ring for driving a shutter opening/closing mechanism and a distance adjusting mechanism, and a decision of an original position of this driving ring can be combined and executed by one detecting means. CONSTITUTION:By interlocking with a release operation, a driving ring 16 is brought to return operation to an original position before entering into a photographing operating rotation, enters into the photographing operating rotation after having confirmed the original position, and photographing operating members such as a shutter opening/ closing mechanism, etc. are driven. A rotational position of the driving ring 16 at the time photographing and operating rotation in this case is detected by rotational position detecting means 41, 42, and based on this position detecting signal, an operation end signal of the photographing operating member is outputted by a prescribed timing. On the other hand, confirmation of the original position at the time of release- operating is also executed by the position detecting signal from the rotational position detecting means 41, 42. In such a way, said detection and confirmation can be combined and executed by one detecting means, the device is simplified and the cost can be reduced. |
