| 摘要 |
PURPOSE:To ensure the quick stabilization of diaphragm as well as the reduction of load required for winding of a film, by attaining a constitution in that the diaphragm coupling member of the interchangeable lens side and the diaphragm driving member of the camera main body side into a body by means of a coupling member by mounting an interchangeable lens to the camera main body. CONSTITUTION:When an interchangeable lens 1 is turned right and mounted to a camera main body 3, an unlocking lever 5 is turned right by a coupling flange 2a. As a result, a coupling member 10 turns right against the force of a spring 10b and a catch part 10c of the member 10 moves back to the position to avoid hindering the movement of a diaphragm coupling member 8. As a result, the member 8 touches a diaphragm drive member 9 according to the right turn of the lens 1 to be connected inseparably to the member 9 to reduce the time required for the setting of the diaphragm. When the lens 1 is detached from the body 3, a release button 6 is pushed to give the right turn to the lever 5. As a result, the member 10 moves back to avoid hindering the detachment of the member 8. |
