Camera arrangement, the camera of interchangeable lens, the auxiliary part interchangeable lens of camera

摘要

PROBLEM TO BE SOLVED: To easily and inexpensively achieve the ground reinforcement of an interchangeable lens by a lens interchangeable type camera.SOLUTION: In a lens interchangeable type camera system, a first interchangeable lens incorporating an in-lens motor for lens drive and a second interchangeable lens incorporating no in-lens motor for lens drive can be selectively attached/detached to/from a camera main body, and when the first interchangeable lens is attached, power is supplied from power supply means at the camera main body side to the in-lens motor, and when the second interchangeable lens is attached, a drive force of an in-body motor is transmitted to a lens drive mechanism. When the second interchangeable lens is attached to the camera main body, not only a first ground path via attachment/detachment means for mechanically connecting the camera main body to the second interchangeable lens but also a second ground path via the power supply means is formed, and the second interchangeable lens is connected to a reference potential point at the camera main body side.SELECTED DRAWING: Figure 8