By Audley Jarvis
19 Sep 2011
Official SIGMA standard zoom lens 17-50mm F2.8 EX DC OS HSM APS-C only for Canon
SIGMA DC 17-50mm f/2.8 EX OS HSM FLD Large Aperture Standard Zoom Lens
SIGMA Zoom 17-50mm F/2.8 EX DC OS HSM w/Hood for Sony/Minolta from Japan EXC+++
SIGMA standard zoom lens 17-50mm F2.8 EX DC OS HSM APS-C-only for Canon japan
SIGMA standard zoom lens 17-50mm F2.8 EX DC OS HSM APS-C-only for Nikon japan
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