Amazon.com : Tamron SP AF 17-50mm F/2.8 XR Di-II LD (IF) Aspherical Lens for Pentax K-Mount Black : Digital Slr Camera Lenses : Electronics,TAMRON タムロン SP AF 17-50mm F2.8 XR Di II LD Aspherical IF A16 PENTAX Kマ – アルプスカメラ,Tamron SP AF 17-50mm f/2.8 XR Di-II VC LD Aspherical (IF) Lens for Nikon F : Electronics - Amazon.com,TAMRON タムロン SP AF 17-50mm F2.8 XR Di II LD Aspherical IF A16 PENTAX Kマ – アルプスカメラ,Tamron SP AF XR LD Aspherical IF Di II 17-50mm F2.8 Lens Reviews - Tamron Lenses - Pentax Lens Review Database,