Adorama offers the Sigma 17-50mm f/2.8 EX DC OS HSM Lens for Nikon, model no. 583306 (pictured), Sony, model no. 583205, or Canon, model no. 583101, Sigma, model no. 583110, Pentax, model no. 58C109, for $544. (You may need to click through to Adorama to see it.) Plus, you’ll receive […]
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