Amazon.com : HD PENTAX-DA 20-40mm F2.8-4ED Limited DC WR Black, Standard Zoom Lens, For APS-C Size, High Definition Limited Lens, Machined Aluminum Body, High Definition Drawing, High Performance HD Coating, High Speed
Pentax HD DA 20-40mm F2.8 - 4 Limited DC WR Wide Zoom Lens for Q Mount - Black : Electronics - Amazon.com
Amazon.com : Pentax K-Mount HD DA 40mm f/2.8 40-40mm Fixed Lens for Pentax KAF (Limited Black) : Camera Lenses : Electronics
Amazon.com : HD PENTAX-DA 20-40mm F2.8-4ED Limited DC WR Black, Standard Zoom Lens, For APS-C Size, High Definition Limited Lens, Machined Aluminum Body, High Definition Drawing, High Performance HD Coating, High Speed