Patent ID: 8628259

Claim:
An image pickup apparatus comprising: a mirror unit configured to enter a shooting optical path at a time of observation through a viewfinder, and retract from the shooting optical path at a time of shooting; a positioning member with which the mirror unit having entered the shooting optical path comes into contact so as to be positioned in the shooting optical path; a bounce suppressing member comprising a lock pin configured to suppress bounce of the mirror unit that has come into contact with the positioning member; and an adjustment member comprising a first shaft portion to which the positioning member is fixed and a second shaft portion on which the bounce suppressing member is rotatably fitted, wherein the second shaft portion is coaxially provided with the first shaft portion, and the first shaft portion and the second shaft portion are eccentric from a rotational center of the adjustment member, and wherein when said adjustment member is rotated, said positioning member and said bounce suppressing member move in the same direction at the same travel distance.