IMAGING DEVICE, CONTROL METHOD THEREFOR, AND PROGRAM

PROBLEM TO BE SOLVED: To provide an imaging device that even when there is a change in an angle of view, can acquire an image with the angle of view before the change in the angle of view.SOLUTION: An imaging device provided with a level acquires an angle of view, determines whether the angle of view acquired by angle-of-view acquisition means has varied until actual imaging execution, and when it is determined that the angle of view acquired by the angle-of-view acquisition means has varied, changes the angle of view after the variation so that the angle of view before the variation falls therewithin. Then, an image included in the angle of view before the variation is trimmed from the changed angle of view and is stored.