Focus Objective Rubber Ring Sigma 17-50 mm F2.8 Ex DC OS HSM AG1208. Focus Ring Sigma 17-50 mm F2.8 EX DC OS HSM. Obiettivo Zoom Gomma Anello Sigma 70-200mm F2,8 Ex Dg Macro HSM II AG1226. Obiettivo Zoom Gomma Anello Sigma 18-200mm F3, 5-6, 3 Dc HSM OS AG1201.
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