The iPhone is not a camera, it just has a cheap plastic lens, a chip and some memory dedicated to capturing and storing image data. There are no adjustments possible, all you do is raise the phone in front of you, push the button and hope that something somewhere might be in focus. Now and again, even this primitive set-up catches more than mere objects, but a mood or a feeling. At 7am one morning in Amsterdam I noticed how no boats had been on the Herengracht, leaving the water untouched and as still as a pond. It made me get off my bike and take one of those quick snaps, without considering exposure time, aperture or focus.