Amazon.co.jp: HD PENTAX-DA FISH-EYE 10-17mm F3.5-4.5 ED Diagonal Fisheye Zoom Lens, For APS-C Size, Fisheye and Ultra Wide Angle Shooting, Single Lens, Clear Drawing, High Performance HD Coating, Small, Lightweight Design, Close-Up
Pentax smc DA 10-17mm f/3.5-4.5 ED IF Fisheye Lens 21580 DSLR Non-Full Frame Zoom Wide Angle Lenses - Vistek Canada Product Detail