Congratulation on your new Canon EF 300 f/4L IS USM! []


1. To shoot bird in flight, the faster the shutter speed the better it is. I try to keep my shutter speed at at least 1/1000 by opening the aperture and/or increasing the ISO speed.


2. For bird in flight, you should always use AI Servo AF.


To get good bird in flight shots, you need to practice on your panning and tracking technique, the more you shoot the better you get []


Good luck


Nate,