| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small size adaptor. <P>SOLUTION: An adaptor of a first embodiment is an adaptor that connects a lens tube that includes a diaphragm and a diaphragm driving member and in which an aperture ratio of the diaphragm is changed by deviation of the diaphragm driving member, and a camera body. The adaptor includes: a movable member 310 that is movable in a state of being in contact with at least a part of the diaphragm driving member within a first area A1 that is a part of a circumferential direction of an optical axis AX of the lens tube; and a pin 363 that is disposed at a position where in a second area A2 outside the first area A1 in the circumferential direction, a distance L3 with the optical axis AX with reference to a radial direction with respect to the optical axis AX is substantially equal to a distance L1 between the optical axis AX and the movable member 310, and regulates a relative position in the circumferential direction with respect to the camera body. <P>COPYRIGHT: (C)2013,JPO&INPIT |
