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Flashes and Lights Sigma EM-140 DG Macro Flash (Canon E-TTL) Compatible Cameras SA-STTL (SIGMA), EO-ETTL II (CANON), NA-iTTL (NIKON), PA-PTTL...
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Amazon.com : Sigma EM-140 DG Macro Ring Flash for Canon SLR Cameras : On Camera Macro And Ringlight Flashes : Electronics
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