Sigma EM-140 Dg Sa-sttl

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SIGMA EM-140DG Ring Flash w/Macro Flash Adapters 62, 58, 55, 52 FOR CANON | UNBOXING

The Sigma EM-140 DG Macro Flash is ideal for photographing subjects in fine detail and is extremely effective for scientific and ...

Sigma EM-140-DG-ETTL (ring light)

Sigma EM-140-DG-ETTL (ring light) for Canon 7D camera with 100-400mm L is.

Close-up Photography with Ring Flash

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