Amazon.com : Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard
Amazon.com : Sigma 24-70mm f/2.8 IF EX DG HSM AF Standard,Sigma 24-70mm f/2.8 DG OS HSM IF ART Lens for Canon EF 576954,61g9Il1YmCL._AC_UF350,,SIGMA 24-70mm 2.8 DG HSM OS | Art | SIGMA Corporation of America,Amazon.co.jp: SIGMA 24-70mm F2.8 DG OS HSM | Art A017