BODYTUBE OF INTERCHANGEABLE LENS OF FOCUS AID CAMERA

摘要

PURPOSE:To execute proper focus aid display corresponding to an individual operating direction and to improve the freedom of design of interchangeable lenses and their interchangeability by forming an operating direction information means so that its information can be outputted to a camera body. CONSTITUTION:The operating direction information means 37 has information related to the operating direction of a focusing member 8 fitted to an interchangeable lens 1 in accordance with the change of a distance from a subject and applies the information as electric and mechanical outputs to the camera body having a focus aid function to which the lens 1 is fitted so that a command to the focusing operation direction for focusing based upon the focus aid function is displayed in accordance with the operating direction of the member 8 to the focusing side. When the operating direction of the member 8 is changed in accordance with the switching of the using status of a zoom area and a macro area by the lens 1, the means 37 outputs two kinds of information corresponding to both the operating directions to the camera body to display the operating direction in accordance with the change of the operating direction of the member 8.