| 摘要 |
PURPOSE:To improve response without expanding a driving means by limiting the load of a driving means only to a control member to reduce the load of servo driving. CONSTITUTION:To execute stopping photometry, the diaphragm of a lens can be servo-controlled from the camera side by servo-controlling a motor M under the status that a charge part 30c of a diaphragm driving lever 30 is abutted upon a dowel 32a of a gear 32. When a diaphragm interlocking lever 32 can be moved on its moving track and is moved from the initial position, the dowel 32a of the gear 32 is used as a regulating member for regulating the position of the lever 32 by abutting upon the lever 32 and a start lever 32 and a magnet unit MG are used as locking members for locking the lever 32 on the initial position until the start of release operation and holding the diaphragm on an opened position.
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