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Amazon.com : Sigma 70-300mm F/4-5.6 DG OS SLD Super Multi-Layer Coated Telephoto Lens for Canon AF Mount Digital SLR Cameras : Camera Lenses : Electronics
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Sigma 70-300mm f/4-5.6 DG OS (Optical Stabilizer) AF Telephoto Zoom Lens for Pentax + Opteka UV Filter + Opteka CPL Filter + Opteka 5 Piece Cleaning Kit - Walmart.com
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Amazon.com : Sigma 70-300mm f/4-5.6 DG Macro Telephoto Zoom Lens for Pentax SLR Cameras : Camera Lenses : Electronics
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