Image pickup apparatus equipped with a supporting mechanism for supporting a viewfinder

An image pickup apparatus that reduces the number of components of a supporting mechanism for a viewfinder. A base member of the mechanism is fixed to the apparatus body, has side wall sections at both sides, and has a linear rail extended along the pulling direction and at least one circular rail extended from the linear rail on each of the side wall sections. A holding member of the mechanism is arranged inside the side wall sections of the base member while holding the viewfinder, has side walls at both sides in the width direction, has supporting shafts for each side wall that are connected to the side wall and can slide along the linear rail, is slidable in the pulling direction with the viewfinder, and is rotatable in a pulled state by moving at least one supporting shaft along the circular rail around the other supporting shaft.