Wed 21-Nov-12 11:42 AM | edited Wed 21-Nov-12 12:01 PM by Chris Platt
"I had read reports that AF-C was the better mode to use due to the fact that we never hold COMPLETELY still when taking photographs, and if you used AF-C, the focus would track until the shutter was released."
The trouble with using AFC on a stationary target is that you don't know where the camera is focusing (if you're using anything other than AFC S]. You may know the focus point you selected to start with, but once the camera starts focusing, it is free to pick any other focus point it wants and it won't let you know which focus point is being used. You won't discover the point that was used until you post process the image. If you're using AFC with a single point selected, you're movement may cause the camera to adjust focus slightly when you didn't intend it to.
It is extremely unlikely IMO that wind or subject movement in a posed shot will result in an out of focus shot if you're using AFS. Any slight variation in movement should be well within the DOF. It is more likely that wind or subject movement will throw focus off if you're using AFC. Somebody moves an arm or a slight turn of the head, or a net moves in the background (less likely) and the camera grabs another focus point or focuses on another part of your subject - and you won't know it did it until it's too late. Something is going to be in focus, just not the point you had hoped for.