According to the present invention, a cut-out size with a predetermined aspect ratio common to a plurality of images acquired from each of a plurality of imaging units is determined based on a minimum size among sizes of possible areas around an initial optical axis center, and an image for output is cut out from each of the plurality of images in the common cut-out size determined by a size determination unit based on the initial optical axis center before each vibration correction of the plurality of imaging units. Alternatively, according to the present invention, a cut-out size with a predetermined aspect ratio common to images from each of a plurality of imaging units is determined based on a minimum value of sizes of possible cut-out areas independent of vibration correction corresponding to the plurality of imaging units, and an image for output is cut out from each of the plurality of imaging units in the common cut-out size determined by the size determination unit based on the initial optical axis center before each vibration correction of the plurality of imaging units. As a result, output images, in which the optical axis center position is maintained before and after the camera shake correction, can be obtained, and stereoscopic vision is possible using the images for output.