It doesn't just let you change focus on the fly; it also gives you a honking giant image -- 52 MP according to the Verge. The lenses themselves range from 35 to

It doesn't just let you change focus on the fly; it also gives you a honking giant image -- 52 MP according to the Verge. The lenses themselves range from 35 to 150 mm, which gives you a fair amount of play in terms of zoom, too. So, good low-light capability in a box about the size of a smartphone plus high-quality high-resolution images.