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Amazon.com : Pentax SMC DA Series 50-135mm f/2.8 ED IF SDM Telephoto Zoom Lens for Pentax and Digital SLR Cameras : Camera Lenses : Electronics
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Amazon.com : Pentax 21977 DA 18-135mm f/3.5-5.6 ED AL (IF) DC WR Lens for Pentax Digital SLR cameras,Black : Digital Slr Camera Lenses : Electronics
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