This Osprey was photographed here at Indian Lake Estates this past Monday with the Canon EOS-50D and the 400DO IS lens handheld. ISO 400. Evaluative metering +1 1/3 stops: 1/1250 sec. at f/6.3. AI Servo AF/Central Sensor only.
As I have stated consistently here and in Bulletins, AF on the 50D is remarkable; tracking and focusing accuracy on birds in flight is more consistenly accurate than with any Canon camera that I have ever used. To see how the 50D focuses accurately through a telephone pole, see today's blog entry here:
http://www.birdsasart-blog.com/
Folks late to the party may need to scroll down.
Don't be shy; all comments welcome.