Pentax - Sigma 70-300mm F4-5.6 APO Macro Super - for Pentax - Catawiki
Amazon.com : Tamron AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Pentax Digital SLR Cameras (Model A17P) : Digital Slr Camera Lenses : Camera & Photo
File:Pentax K-5 with Tamron 70-300mm Di LD Macro.jpg - Wikimedia Commons
Amazon.com : Tamron AF 70-300mm f/4.0-5.6 Di LD Macro Zoom Lens for Pentax Digital SLR Cameras (Model A17P) : Digital Slr Camera Lenses : Camera & Photo
Sigma 70-300 DL Macro Super Lens for pentax | eBay