Amazon.com : Pentax SMC FA 50mm f/1.4 : 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 : Pentax DA 50mm f1.8 lens for Pentax DSLR Cameras : Digital Slr Camera Lenses : Electronics