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 : HD PENTAX-D FA50mmF1.4 SDM AW Single-focus standard lens New-generation, Star-series lens Extra-sharp, high-contrast images Free of flare and ghost images, Black : Electronics