Panning: moving the camera while the exposure is taking place. This is done using a slow shutter speed.

With slower shutter speeds, this technique can ensure that the subject stays sharp even if the background is blurred, an effect that is quite striking and effective for sports

• A simple way to try this is to stand by the side of a road and pick out a car coming towards you;
• Set your cameras shutter speed between a 15th/sec and a 60th/sec, basically slow enough to cause movement as you swing or pan the camera. The aperture and depth of field are somewhat irrelevant as the background will be blurred anyway.
• Make sure that you aren't too close to the road. One, for your own safety and secondly if you are too close, the car will become distorted, especially with wide angle lenses, although this may be the effect you like. A small telephoto like 85 or 100mm is good for this technique.
• Either, pre-select and manually focus on the point directly in front of you where you want to take the shot, this will "fix" the focus on that point, or set the autofocus to AI servo in order to "track" the moving car.
• Aim your camera at the car and stay with it with your finger lightly pressing the shutter button to either track the focus (in AI servo mode) or/and to get a constant exposure reading.
• At the point where it passes your pre-designated shooting area, fire away, whilst "panning" with the car all the time, and even use continuous mode if you have it to ensure one shot comes out well.