| 摘要 |
An interchangeable lens assembly including an adapter member which is held in a predetermined position relative to a camera when the lens assembly is mounted on the camera and a lens barrel structured to be rotatable relative to the adapter member during mounting of the lens assembly on the camera, the lens barrel having affixed thereto coupling means for coupling the lens assembly with the camera. The invention is directed particularly to the support structure of the lens barrel for rotatably supporting by means of the adapter member the signal transmission mechanism for transmitting exposure control signals between the lens assembly and the camera and an operation member for operating the diaphragm device of the lens assembly in accordance with operational parameters developed from the camera side of the lens assembly.
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