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Amazon.com : Samyang SY14M-P 14mm F2.8 Ultra Wide Angle Lens for Pentax : Digital Slr Camera Lenses : Electronics
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Amazon.com : Samyang 10mm F2.8 ED AS NCS CS Ultra Wide Angle Lens for Pentax K and Samsung K Mount Digital SLR Cameras (SY10M-P) : Electronics
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Amazon.com : Samyang 10mm F2.8 ED AS NCS CS Ultra Wide Angle Lens for Pentax K and Samsung K Mount Digital SLR Cameras (SY10M-P) : Electronics
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