| 摘要 |
PURPOSE:To make an exclusive switch for preventing information input of an aperture stop value unnecessary, by moving a contact piece to a part, where an aperture stop value information resistance pattern is absent, synchronously with the stop-down metering operation. CONSTITUTION:An aperture correcting pin 16 of a camera is pressed in by an aperture correcting pin 40 of a lens, and an aperture correcting lever is rotated in accordance with this pressing-in to move sliding brushes 35a, 35b, and 35c to positions corresponding to an aperture stop value. Simultaneously, a pursuit needle holding plate 19 follows the pursuit needle 7 to move a rotation shaft 19a of to a position corresponding to the aperture stop value. Thus, the manual operation for exposure measurement at open aperture is performed. In the manual operation for exposure measurement at shooting aperture, an aperture correcting lever 20 is pressed by a stop-down sliding plate 5a, and sliding brushes 35a, 35b, and 35c are moved to positions outside an aperture stop value information resistance 36, a bend correcting information resistance, and a switch pattern 38, and the input of information of resistance 36 and 37 is prevented. |
