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Photo and caption by Peter Wiarda

I'd read about a photographic technique called photo impressionism or light painting--using a slow shutter speed to blur the image along a linear plane--and I wanted to try it out for myself. After weeks of practice and experimenting with rotating the camera to achieve a radial blur, I finally got the shot I was looking for. Because the outer edge of the lens was moving faster than the center as I rotated it, the white flowers in the middle are in focus while the rest gradually blurs outward from the center.

Location: Logan, Utah, United States