Tamron AF 17-50mm F/2.8 XR Zoom Lens for Canon
17-50mm f/2.8 Di II LD Aspherical (IF) Tamron zoom lens (A16E) * 35mm equivalent focal length of 26-78mm * compatible only with Canon digital SLR cameras with APS-C (24mm x 16mm or smaller) image sensors — not compatible with the Canon EOS 5D or EOS 5D MkII full-frame sensor models * advanced optical design with low-dispersion, hybrid aspherical, and extra refractive index glass elements for superior image quality * internal focusing design maintains constant lens length for better balance and easier operation * special internal surface coatings to eliminate ghosting and flare * minimum focus distance: 10.6 inches (throughout zoom range) * diaphragm blades: 7 * attachment/filter size: 67mm *
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