In Focus Motion Blur

[DocSkalski]

Camera Canon EOS REBEL T2i
Exposure 0.077 sec (1/13)
Aperture f/16.0
Focal Length 55 mm
ISO Speed 100
Exposure Bias 0 EV
Flash Off, Did not fire

Took this picture of my girlfriend ice skating. As you can see I used a slightly longer exposure, because i wanted a sense of motion in the scene. She stayed in focus because I kept her in the same place in the frame while she was skating by, and since i was moving the camera the background was blurred.
This technique is not for the impatient, as I took about 20 shots before i kept her in the same spot in the frame for the full exposure. Good luck and happy shooting!

[Photologyst]

Nice.

You can get the same result panning.

[DocSkalski]

Originally Posted by Photologyst

Nice.

You can get the same result panning.

That's the idea, as i described. But, the key is to stay on your subject well enough that they aren't blurred as well.

[Sterling]

Originally Posted by DocSkalski

That's the idea, as i described. But, the key is to stay on your subject well enough that they aren't blurred as well.

Yes, that is the key to panning.

[NgaiHill]

Nice shot, I've tried this, not as easy as it sounds!