Testing out Sigma's 200-500mm f/2.8 green whale of a lens
File:Sigma 200-500mm F2.8 EX DG APO 02.jpg - Wikimedia Commons
File:Sigma 200-500mm F2.8 EX DG APO 01.jpg - Wikimedia Commons
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Sigma 200-500mm f/2.8
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Sigma 200-500mm F2.8 APO EX DG
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Sigma 200-500mm f/2.8 APO EX DG
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