Camera red dot sight turns your DSLR into a deadly weapon

If you're a gamer addicted to Modern Warfare 2, I don't have to tell you what this is. For the uninitiated, it's a red dot sight, a gun attachment that makes it a whole lot easier to aim down the barrel. And now you can take it off the battlefield and into the park when you're taking pictures.
Yes, this is a red dot sight for cameras. Sure, it looks a little ridiculous, but it also looks a little awesome. And for a mere $45, this is pretty close to impulse buy territory. Hey, who knows, maybe using this in the real world will improve your aim in-game? Stranger things have happened.