1. An image acquisition apparatus comprising: a main body having a stage configured to support an object; a preview camera module provided above the stage and configured to acquire a preview image of the object supported on the stage; at least one main camera module provided above the stage and configured to rotate, about a rotation axis substantially orthogonal to the stage, to acquire a plurality of partial images of the object supported on the stage, the partial images respectively corresponding to different rotational positions of the at least one main camera module; and at least one processor configured to produce an image of the object by synthesizing the acquired plurality of partial images of the object, wherein at least a portion of each partial image of the plurality of partial images acquired by the at least one main camera module overlaps another partial image of the plurality of partial images.