Patent ID: 7758258

Claim:
An image-pickup apparatus comprising: a mirror movable into and out of an image pickup optical path; shutter blades closing and opening an aperture; a blade lever connected with the shutter blades; a blade-returning spring biasing the blade lever in an open direction in which the shutter blades open the aperture; a driving lever driving the blade lever in a close direction in which the shutter blades close the aperture; a blade-driving spring biasing the driving lever in the close direction; a latching lever engaging with the blade lever to hold the blade lever at a position where the shutter blades close the aperture; and a set lever rotatable between a first position for causing the mirror to be located in the image pickup optical path and a second position for causing the mirror to be located out of the image pickup optical path, wherein the set lever rotating from the first position to the second position releases engagement of the latching lever with the blade lever, and wherein the blade lever after the engagement is released drives the shutter blades in the open direction by a biasing force of the blade-returning spring.