Amazon.com : PENTAX DFA Macro 50mm F2.8K Mount Monofocal Macro Lens Full Size APS-C 21530 : Camera Lenses : Electronics
Amazon.com : SMC PENTAX 50mm f 1.4 LENS : Electronics
Amazon.com : Pentax SMC FA 50mm f/1.4 : Camera Lenses : Electronics
Amazon.com : Pentax SMCP-D FA 50mm f/2.8 Lens for Pentax and Samsung Digital SLR Cameras (OLD MODEL) : Camera Lenses : Electronics
Amazon.com : Pentax smc PENTAX-FA 50mmF1.4 Classic, Single-Focus, Standard Lens for use with K-Mount Digital SLR Cameras ND Filter Included : Electronics
Amazon.com : SMC Pentax-M 85mm F2 Prime Lens Pentax K Mount : Electronics
Amazon.com : Pentax SMC FA 50mm f/1.4 : Camera Lenses : Electronics
Amazon.com : SMC PENTAX 50mm f 1.4 LENS : Electronics