Sigma 100-400mm F5-6.3 DG OS HSM | Contemporary (Nikon F mount)
firmware v1.02
Sigma · Released Sep 8, 2017 · First seen Jul 5, 2026
v1.02 is not the latest firmware for the Sigma 100-400mm F5-6.3 DG OS HSM / Contemporary (Nikon F mount): the current version is v1.03 (April 18, 2019). Go to v1.03
What's in this 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 ver.).
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