Can anyone guide me on how to set AI-Servo on the 5D? I did some research and did not find out how. Any help is appreciated.
On top of camera - press the 'AF-WB' button, turn the little wheel by the shutter button to change it.
Pay attention though, I tend to have a lot more OOF shots when I use AI servo - or try to use it. I also learned that if you're using a speedlite, the red focus beam will not operate when the camera is set to AI Servo.