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Citric and Tartaric Acids -- Courtesy of Nikon Small WorldThis 60x photo of citric and tartaric acids received an Image of Distinction designation in the 2013 Nikon Small World Photomicrophotography Competition, which recognizes excellence in photography with the optical microscope. It was taken by Mr. Harald K. Andersen of Lier Fotoklubb in Steinberg, Buskerud, Norway, using polarized light.

www.nikonsmallworld.com

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