| 摘要 |
PURPOSE:To prevent adverse influence owing to the bound of an aperture upon photometry and exposure by so arranging the titled device that an aperture switch is turned on when a driving lever for displacing an aperture lever from a max. position to a min. position passes through the min. position. CONSTITUTION:A switching means 147 which generates the signal indicating the completion of stopping down when a driving lever 138 abuts thereon is provided. The lever 138 is so arranged as to abut on the means 147 after it displaces to a prescribed extent beyond the position where an aperture level 145 is brought to the min. position. In other words, measuring and exposure are started not immediately after the aperture is minimized but after a certain while and therefore the bound of the aperture is contained and the adverse influence owing to the bound upon photometry and exposure is obviated. |
