We did this little fight scene while we were visiting London a couple weeks back. Also tested out the warp stabiliser for AE5.5. We were completely handheld with the 7d as we didn't have any support mechanisms with us. No monitor, no loupes, just handheld with a camera. Sun was shining so focus was pretty difficult occasionally. Mostly shot with the kit lens 18-135mm, some with the 30mm sigma.
YouTube - ‪Fight Under Bridge, feat. Zara‬‏