| 摘要 |
PURPOSE:To execute various corrections and controls so as to be adapted to photographing by a camera to which an auxiliary lens has been attached by constituting the title device so that when the auxiliary lens device has been installed in a camera body, its fact is transferred to the camera body through a signal transfer means. CONSTITUTION:At the time of attaching an auxiliary lens device to a camera body, first of all, a tripod screw 14 attached to a fitting base 13 is screwed into a tripod taphole provided on the camera body. Thereafter, a telecontrol cover 8 is rotated clockwise so as to abut on a front cover 18 of the camera body by using a spring pin 16b as a turning axis, and subsequently, a hook 7 is turned clockwise by using a spring pin 16a as a supporting axis, and an engaging part 7b is engaged to a rear cover 19 of the body. In this case, a projection 7a of the hook 7 presses downward a switch member 17, therefore, the camera body detects a fact that the telecontroller has been installed, varies the extension quantity of a photographic lens 21, and in a state that the photographic lens has been extended to a position 21a of a correct photographing distance, photographing is executed. |
