No technical info
Jennifer indicates that this is her attempt at panning. It’s a good one. The girl with the yellow hat is in focus while all around her the other elements are blurred. It’s a good way to isolate your subject from a confusing background. To do this one needs to use a slow shutter and move the camera with the direction of the subject’s movement. In this case left to right. If you are accurate, you will come up with something like this. You can also achieve this effect in Photoshop. But it’s more fun in camera.
PhotoCritical 