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Amazon.com : Pentax K-Mount HD DA 40mm f/2.8 40-40mm Fixed Lens for Pentax KAF Cameras (Limited Silver) : Camera Lenses : Electronics
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Pentax DA 40mm f/2.8 Lens Ultra-thin pancake prime lens for Pentax K-mount digital SLRs and the Pentax K-01 at Crutchfield
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Amazon.com : Pentax K-Mount HD DA 40mm f/2.8 40-40mm Fixed Lens for Pentax KAF (Limited Black) : Camera Lenses : Electronics
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