FOURTH THING:
Your DxO ONE
has a very special
Sele mode.
Plug in the camera with the iPhone facing you, and the DxO ONE
automatically goes into Sele mode. It uses a soft box feature that
lights up your iPhone screen to give more natural lighting for your
face. Then it counts down 3, 2, 1 and shoots, so no one blinks
or gets caught unaware.