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Focused Flowers

Focused Flowers

 This image demonstrates how prisms add path length and depth of field. While the yellow flower itself is not in focus, its image in the right-angle prism is, as are the red flowers behind the yellow one and the prism. The blue beads next to the prism are up against the surface of the prism facing the camera.
Danielle C. Doughty, University of Arizona, U.S.A.

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