By Audley Jarvis
19 Sep 2011
NEW SIGMA 17-50mm F2.8 F/2.8 EX DC OS HSM STANDARD ZOOM LENS FOR CANON EF MOUNT
Sigma EX DC OS HSM APS-C 17-50mm F2.8 Standard Zoom Camera Lens for Nikon
SIGMA standard zoom lens 17-50mm F2.8 EX DC OS HSM for Nikon APS-C
Sigma EX DC OS HSM APS-C 17-50mm F2.8 Standard Zoom Camera Lens for Canon
Sigma 17-50mm f/2.8 EX DC OS HSM FLD Large Aperture Standard Zoom Lens for Canon
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