The iPhone was also a solid runner-up with this test -- it didn't perform as well in even dimmerlight, as we experienced when capturing images from a dark rooftop late at night, but it did yield decent shots in the lab.
But it also carries a coronagraph to block the light from bright objects so it can see more easily nearby, dimmer targets - such as planets circling their stars.
The dimmer has a unique multi-touch capacitive interface that allows the light to be turned on or off by sliding a finger up or down on the glass switch front.