Panning Photography: How to Blur the Background without Blurring the Subject – PictureCorrect: "he best motion photographs pulse with energy. Action photographers accomplish this using many different techniques. One technique employs lightning fast shutter speeds to freeze motion so that every feather of a bird’s wings is perfectly sharp as the bird twists in flight, or so that every droplet of water sprayed by a swimmer is crisp and visible to the viewer. Sometimes, however, it’s better for photographers to “pan” with subjects to communicate movement and speed by creating intentional background blurriness, as with images of cyclists."
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