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20mm Duel - Sigma vs. Flektogon | by djidji.perroto
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20mm Duel - Sigma vs. Flektogon

Note how tiny the CZJ Flektogon 20/2.8 (with canon eos-to-m42 mount adapter attached) looks compared to the latest incarnation of Sigma's 20/1.8 EX DG. The Flektogon has 9 elements in 8 groups vs. the 13 elements in 11 groups inside the Sigma. The Sigma out-weights the older lens at 520 vs. 350g.

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Taken on October 2, 2007