Sigma 10mm f/2.8 EX DC HSM Fisheye Lens for Canon Digital SLR Cameras (OLD MODEL)
,Amazon.co.jp: SIGMA 単焦点魚眼レンズ 10mm F2.8 EX DC FISHEYE HSM ペンタックス用 対角線魚眼 APS-C専用 477615 : Electronics,Sigma 10 mm f/2.8 EX DC FISHEYE HSM review - Pictures and parameters - LensTip.com,Sigma 10mm f/2.8 EX DC HSM Fisheye Lens for Canon Digital SLR Cameras (OLD MODEL),Sigma 10mm f/2.8 EX DC HSM Fisheye Lens for Canon Digital SLR Cameras (OLD MODEL)