Obiettivo Sigma 17-50mm f/2.8 EX DC OS HSM per Canon APS-C usato
Its optical stabilization (OS) and Hyper Sonic Motor (HSM) ensure smooth, quiet autofocus and sharp images even in challengingcondition s. ✔ C:Model: 17-50mm F2.8 EX DC OS HSM. ✔ C:Autofocus: Yes (HSM).