Sigma issued a new firmware updated for those lenses:
・ SIGMA 16mm F1.4 DC DN | Contemporary (for APS-C)
・ SIGMA 30mm F1.4 DC DN | Contemporary (for APS-C)
・ SIGMA 56mm F1.4 DC DN | Contemporary (for APS-C)
・ SIGMA 35mm F2 DG DN | Contemporary (35mm full size compatible)
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