| 摘要 |
PURPOSE:To prevent erroneous operation by changing over the condition wherein automatic focusing (AF) is operated by releasing of a shutter release button and a shutter cannot be operated to the condition wherein the shutter is operated and the AF cannot be operated. CONSTITUTION:When a mode selection switch is selected from an AF control mode to an exposure control mode, electricity is conducted continuously to a moving coil 37. Since electricity is conducted for a long time in the exposure control mode, a sector lever 41 moves by following up the movement of a rotor 36, thereby moving shutter vanes 45 and performing exposure operation. The conduction of electricity to the coil 37 is interrupted by the exposure operation, and the rotor 36 is turned clockwise by the force of a spring 39. The lever 41 is rotated as well to move the vanes 45, by which the shutter is closed. Since a step cam 8d is engaged to a dowel 27, an AF control lever 8 cannot move leftward, and the deviation in the set distance position of the lens is obviated. |
