On this one, I didn't have to quickly calculate shutter speed and camera rotation. Another way to catch movement. I didn't do anything. All automatic… I am a lazy guy and I always try the easiest way. All I knew is there was no lag when I pressed the button, so I had a chance to get it. And the guy is actually flying. But the poor Flatiron building that I like so much is truncated. Sometimes one has to make a choice… And someone really missed a picture or she got the Flatiron in all its majesty and is happy to see the result on the back screen of her camera.