An imaging apparatus, for example, a security camera, having a camera assembly including a camera mounted on and supported by a base and pivotally rotatable both in a vertical direction and in a horizontal direction to allow tilting and panning motions of the camera. The camera assembly is supported on an assembly fixation structure of the base to allow the tilting motion of the camera assembly. The assembly fixation structure is panned relative to a base foot of the base. A panning rotation gear for the panning motions of the camera is fixed on a ground plate, which has a positional change relative to a pedestal plate unit in the assembly fixation structure. A tilting motor, a panning motor, and vertical and horizontal rotation transmission mechanisms for the tilting motions and the panning motions of the camera are arranged on the pedestal plate unit of the assembly fixation structure. The tilting motor and the panning motor are arranged having respective output shafts in the horizontal direction and face each other across a pivot shaft fitting element on the pedestal plate unit.