I say almost a must because sometimes when the timing is just right, and the photographer knows the gear they are using, an artistic moment can be shot while following a player as they run past the lens.
In this first image taken at Willow Springs Speedway, the black race car was shot using stop motion. Look also in the back ground, a gray race car is zooming its way around the track.
Now the next image, this blue race car, is convincing that it is in motion. Slowing the shutter down, center weighting the focal point, and panning with the car, trying to get in focus as it races by the lens is hard to do, but offers another level of story telling if done right.
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