i upgraded my 50D to a 7D recently and i’ve been experimenting with the wireless flash control which i absolutely love. combined with my 580exii flash and my roomates flash, i can have some pretty decent looking mobile studio shots. it’s a pretty banal shot, so i fiddled around with the colours, but i still love the rim lighting. one flash behind his head, and another bounce off the ceiling on his left. can’t wait to put this feature to a real use.