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Tamron 17-70 F2.8 Di III-A VC RXD field review: Digital Photography Review
Tamron 17-50mm F2.8 XR Di II VC LD Aspherical Lens - Canon Mount
Amazon.com : Tamron 17-50mm f/2.8 XR Di-II LD [IF] SP AF Zoom Lens for Nikon D40 (Built-in Motor) Bundle with 8GB Memory Card, Camera Bag for DSLR Full-Size 60 Inch Tripod and
SP AF 17-50mm F/2.8 XR Di II VC LD Aspherical [IF]