To make the delay time of shutter release constant.

When a shutter button is pressed, a pressing piece 27a presses a release part 76c in a rightward direction so that a winding stop lever 76 is rotated counterclockwise. By such rotation, a projection 76b is retreated from the moving path of a locking piece 78c so that a delay lever 78 is rotated counterclockwise and a switch gear 90 is rotated clockwise. By engaging edge projections 91a and 91b with a 2nd gear 90b alternately, an ankle 91 restricts the rotation of the gear 90b, and the rotating speed of the lever 78 is adjusted. A projection 77c is pressed to an end 78e by a spring for energizing the lever 77 counterclockwise. The projection 77c adjusts the rotating speed of the lever 78 by applying frictional force in accordance with the energizing force of the spring. Thus, the constant delay time is obtained.