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Amazon.com : Tamron AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Pentax Digital SLR Cameras (Model A17P) : Digital Slr Camera Lenses : Electronics
The Chens: The User's Review: Tamron and Promaster Zoom Lens AF 70-300mm 1:4-5.6 LD Tele-Macro (1:2)
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