Tamron AF 17-50mm F/2.8 XR Di-II LD SP Aspherical IF Zoom Lens for Canon Digital SLR Cameras Model A16E… 4.2 out of 5 stars CONSUMER REVIEWS(335) 17-50mm aspherical zoom lens with f/2.8 maximum aperture for Canon DSLR cameras Delivers fast shutter speeds and natural soft-focus effect to produce sophisticated results 3 elements of XR [...]
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