| 摘要 |
A camera includes a movable mirror arranged to be movable between a finder-viewing position and an exposure-retracted position, a spring member for applying to the movable mirror a force which causes the movable mirror to move from the finder-viewing position to the exposure-retracted position, and a movement mechanism for causing the movable mirror to move. The movement mechanism is provided with a cam member arranged to be rotated by a drive source and a cam follower arranged in abutment with the cam member. During rotation of the cam follower in a first direction, the movement mechanism causes the movable mirror to move toward the exposure-retracted position by means of the urging force of the spring member and, during rotation of the cam follower in a second direction, causes the movable mirror to move toward the finder-viewing position against the urging force of the spring member.
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