Sigma 20 mm f/1.8 EX DG Aspherical RF is a wide angle lens with a 20 mm focal length and f/1.8 aperture for Canon EF and Nikon F and Pentax K and Sigma and Sony A cameras. With fast autofocus, this lens offers reliable performance in various conditions. Weighing 520 g measuring 87 mm in length, it's a well-balanced option for landscape, architecture, and environmental photography.
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