Deal: Sigma 105mm f/2.8 EX DG OS HSM Macro Lens for $469 August 7, 2019 By Eric Reagan B&H has the Sigma 105mm f/2.8 EX DG OS HSM Macro lens for $469 (reg. $969). It’s available at this price for Nikon, Canon and Sigma mounts. Check it out here at B&H Photo. Subscribe to the Photography Bay Deals Newsletter to catch great deals like this and other photo gear deals daily. Sign up here.