I like to take pictures with the iPhone when there's theoretically not enough light. When I snapped this in Wingra Park tonight, the screen showed just a small dot of light and everything else was black. I had to guestimate to frame it. But with some aggressive post-processing on the phone in Snapseed (equivalent to "pushing" film development in the old days), a grainy moody image appears. I like the effect, and it seems magical to make something out of nothing.