A couple of years ago we were down in Bradenton FL for a hockey tournament and went to one of the theme parks down there for the day. I had my Canon 1D Mkll with me and my 70-200 f2.8 and a 1.4 mm extender. Both the lens and the extender are about 25 years old but are perfectly matched to each other. I had a great time shooting birds around the place and this is one of the best ones. The exposure was 1/125 sec. at f7.1 at ISO 200.