Get info: This flash is not particularly well-made, but it is not flimsy either. The mount is plastic. The flash power can be controlled using a mechanical dial. There are 3 control modes: E-TTL, manual, and two opticla slave modes for off-camera use (I have tried them all and they work flawlessly). It requires 4 AA batteries, and they last hundreds of shots on a charge (I use Sanyo Eneloops).