New Patent: Sigma 24-105mm f/2.8-4 DG OS HSM Art Lens

Sigma 24-105mm f4 DG OS HSM lens

Sigma has released the Sigma 24-105mm F/4 DG OS HSM Art Lens in late 2013, this lens is a great lens but not in stock in most stores. Today, Sigma filed a new lens patent for a similar lens in their art series: The Sigma 24-105mm f/2.8-4 DG OS HSM Art lens.

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