B&H has the Sigma 17-50mm f/2.8 EX DC OS HSM lens for $544 (reg. $669) through March 17. It’s available in Canon, Nikon, Pentax, Sony and Sigma mounts for APS-C format cameras. Check it out here at B&H Photo.
Sigma 17-50mm f/2.8 EX DC OS HSM Lens for $544 – Deal Alert
Previous post: Rumored Firmware Update for Canon 6D to Add Autofocus at f/8
Next post: Nikon ViewNX 2.7.4 Released