| 摘要 |
PURPOSE:To average the time lag at the time of a shutter release with respect to a subject distance by shortening the max. moving time of a focusing lens relative to the object distance. CONSTITUTION:The standby position of a rear group lens frame 29 is set in a position where both of the sum of the time required for a distance measuring instrument to detect object distance information at the time of the object distance to be that at infinity position and the time for a motor 26f for a focusing lens for moving a rear group lens frame 29 and the sum of the time necessary for the distance measuring instrument for detecting the object distance information at the time of the object distance to be that at an extremely close position and the time for the motor 26f for the focusing lens for moving the rear group lens frame 29. |
