![Amazon.com : Sigma 17-70mm F2.8-4 Contemporary DC Macro OS HSM Lens for Pentax : Camera Lenses : Electronics Amazon.com : Sigma 17-70mm F2.8-4 Contemporary DC Macro OS HSM Lens for Pentax : Camera Lenses : Electronics](https://m.media-amazon.com/images/I/71aTtpUxZXL._AC_UF894,1000_QL80_.jpg)
Amazon.com : Sigma 17-70mm F2.8-4 Contemporary DC Macro OS HSM Lens for Pentax : Camera Lenses : Electronics
![Amazon.com : Sigma 70-300mm F4-5.6 DL Macro Super Lens for Pentax-AF Camera : Digital Slr Camera Lenses : Electronics Amazon.com : Sigma 70-300mm F4-5.6 DL Macro Super Lens for Pentax-AF Camera : Digital Slr Camera Lenses : Electronics](https://m.media-amazon.com/images/I/712U+JdbykL._AC_UF894,1000_QL80_.jpg)
Amazon.com : Sigma 70-300mm F4-5.6 DL Macro Super Lens for Pentax-AF Camera : Digital Slr Camera Lenses : Electronics
![Amazon.com : Sigma 17-50mm f/2.8 Ex Dc Hsm Lens for Pentax DSLR Camera : Camera Lenses : Electronics Amazon.com : Sigma 17-50mm f/2.8 Ex Dc Hsm Lens for Pentax DSLR Camera : Camera Lenses : Electronics](https://m.media-amazon.com/images/I/61fvpOouuFL._AC_UF894,1000_QL80_.jpg)
Amazon.com : Sigma 17-50mm f/2.8 Ex Dc Hsm Lens for Pentax DSLR Camera : Camera Lenses : Electronics
![Sigma halts production of Pentax K mount lenses to put its focus on mirrorless: Digital Photography Review Sigma halts production of Pentax K mount lenses to put its focus on mirrorless: Digital Photography Review](https://www.dpreview.com/files/p/articles/2688046075/sigma10_20mm_3_5.jpeg)