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Amazon.com : Pentax DA 50mm f1.8 lens for Pentax DSLR Cameras : Digital Slr Camera Lenses : Electronics
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Pentax smc DA 50mm f/1.8 APS-C Autofocus Lens for Digital Cameras for Pentax K mount Cameras Pentax K-01 K-3 III K-500 K-S2 KF - AliExpress
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Amazon.com : Pentax DA 50mm f1.8 lens for Pentax DSLR Cameras : Digital Slr Camera Lenses : Electronics
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