![Amazon.com : Sigma 17-50mm f/2.8 EX DC OS HSM FLD Large Aperture Standard Zoom Lens for Pentax Digital DSLR Camera : Camera Lenses : Electronics Amazon.com : Sigma 17-50mm f/2.8 EX DC OS HSM FLD Large Aperture Standard Zoom Lens for Pentax Digital DSLR Camera : Camera Lenses : Electronics](https://m.media-amazon.com/images/I/51+fdYEP5NL._AC_SY580_.jpg)
Amazon.com : Sigma 17-50mm f/2.8 EX DC OS HSM FLD Large Aperture Standard Zoom Lens for Pentax Digital DSLR Camera : Camera Lenses : Electronics
Pentax K-3 Sigma 17-50 f2.8, Pentax-f 50mm f1.7 $700: For Sale and Wanted Forum: Digital Photography Review
![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://images-na.ssl-images-amazon.com/images/I/61fvpOouuFL._AC_UL210_SR210,210_.jpg)
Amazon.com : Sigma 17-50mm f/2.8 Ex Dc Hsm Lens for Pentax DSLR Camera : Camera Lenses : Electronics
![Sigma 17-50mm F/2.8 EX DC HSM OS (FLD) EF Mount Lens For Canon APS-C Sensor DSLRS {77} - Used SLR & DSLR Lenses - Used Camera Lenses at KEH Camera at KEH Camera Sigma 17-50mm F/2.8 EX DC HSM OS (FLD) EF Mount Lens For Canon APS-C Sensor DSLRS {77} - Used SLR & DSLR Lenses - Used Camera Lenses at KEH Camera at KEH Camera](https://www.keh.com/cdn-cgi/image/q=50,w=600/media/catalog/product/3/5/356320-2491032_01.jpg)
Sigma 17-50mm F/2.8 EX DC HSM OS (FLD) EF Mount Lens For Canon APS-C Sensor DSLRS {77} - Used SLR & DSLR Lenses - Used Camera Lenses at KEH Camera at KEH Camera
![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/5106BQOy6FL.jpg)
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 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/51dCksf5DnL.jpg)