Canon 6d, 400mm
Last night something special happened. These Common Tern's were feeding right off our beach. They dive, wheel, turn like fighter jets. Actually, faster and sharper. They were catching insects on the wing.
A pro-body would probably be able to autofocus on this fast moving subject, but with my 6d, I had to manually focus. Took a lot of shots to get a few in focus but this shot made it all worth it.