Firmware: Sigma 24-70 f/2.8 DG OS Art & 100-400 f/5-6.3 DG OS HSM

By Canon Rumors Sigma 24-70mm f/2.8 DG OS HSM | Art & Sigma 100-400mm f/5-6.3 DG OS HSM | Contemporary for Sigma / Canon / Nikon Benefit of this firmware update It has corrected the phenomenon that the Manual Override (MO) function will be disabled after adjusting the settings of focus mode switch on SIGMA Optimization Pro (Macintosh … → continue…

From:: Canon Rumors