Mitch over at Planet5D compiled a nice set of videos and emails (including step-by-step instructions and useful tips) from those who have been experimenting with “lens wacking” – detaching the lens slightly from a camera to allow light leaks around the edges to hit the sensor. This results in broad colored streaks that look different than your typical lens flare. As 5D owner who finally sent his camera back to Canon to get rid of stubborn dust-on-sensor (and in viewfinder) issues, I cringe a bit at this idea, but it’s a nice artsy effect. Click through and read on.