Firmware update for the SIGMA 17-70mm F2.8-4 DC MACRO OS HSM | Contemporary for Canon & SIGMA 18-200mm F3.5-6.3 DC MACRO OS HSM | Contemporary for Canon 

From Sigma: We would like to announce that a new firmware update for the SIGMA 17-70mm F2.8-4 DC MACRO OS HSM | Contemporary for Canon Read more...