It freaks me out when a prop looks "bent forward" in pics, like this one I found on flickr.
My kid just did state finals in track, they used a special shutter on the finish line, like they used to use for racehorses. It magnifies forward motion, so winning by a nose is easy to make out. We bought a pic on account of his having won
and I'll scan it in. He has a ballerina foot and a freak hand.
you guys are bright and/or better informed.
it was news to me. i googled for rolling shutter and found it. looks like a piece of art to me.
this one is also good (from the above link):