Jennifer has done the same technique. Here the taxi is not quite in focus. The background is blurred. The taxi could be more inside the frame of the image but that is also editorial. In terms of the technical aspect, it’s a good try but not a ‘keeper.’ Someone else has done this and done it better. Still it’s a great effort from an amateur photographer.
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.
Technical: Canon EOS 7D, 1/160 sec, f13, focal length 50
Cousin David titled this ‘motion blur by luck.’ I would call it panning the camera. He shot the image and moved the camera in the same direction with the geese in flight. This will blur the background while keeping the subject in focus. It’s another way to make ‘bokeh’ without playing with depth of field. This is especially helpful in sports where you can visualize a race car going by and the crowded background is a pleasant blur. It enhances the notion of action. With birds this can be difficult because often the flight is less predictable. Here David got a fine shot. I didn’t notice the goose on the right. It was obscured by the background. But the goose on the left is nicely isolated.