I went to Par beach pool today with a new lens. It's one which I have been waiting a while for to come my way. The 200 F2 is world renowned as a sports lens but I have also wanted to try it on wildlife. I wasn't disappointed. In good light today, I used it at F2 (ie. aperture wide open at the maximum) ensuring fastest possible shutter speed and lowest depth of field. The first results are below and I am pleased. The main downside is the lack of reach though coupled to a 2x teleconverter, I'm not anticipating any real headaches. Shutter speed by the way, was 1/5000s !