| 摘要 |
PURPOSE:To make automatic focusing possible while maintaining interchangeability by providing a body side coupling which is rotated and driven by the controlling mechanism in a camera and a lens side coupling provided to an interchangeable lens. CONSTITUTION:A body side coupling 17 is provided to a body mount ring 16. The coupling 17 has a coupling part 17a that fits loosely to the coupling part 4a of a lens side coupling 4. The coupling 4 is provided in part of a lens mount 1, and its rotating axis is provided in parallel with the optical axis of the lens. These are so constituted that the lens is driven forward and backward by the controller for lens driving provided in the camera. Thereby, the lens is automatically forcused while maintaining interchangeability. |
