| 摘要 |
A shutter release mechanism for a large camera designed to reduce a force required for actuation of the shutter thereby minimizing the possibility of camera shake during the shutter release operation. The mechanism is thus particularly useful for the bulb exposure operation. The shutter release mechanism comprises a pressure member movable between a pressing position and a restored position and adapted to actuate the shutter release member, a first hook member adapted to hook the pressure member at the restored position, a restoration lever movable between an operation position and an initial position and adapted to restore the pressure member from the pressing position to the restored position, and a second hook member adapted to hook the restoration lever at the initial position. The first hook member is adapted to release the pressure member when the shutter release button is pushed, whereupon the pressure member actuates the shutter release member. The second hook member is adapted to release the restoration lever when the shutter release button returns from the depressed position, whereupon the restoration lever pushes the pressure member back to the restored position.
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