150-600mm F5-6.3 DG OS HSM | Contemporary (Canon EF mount) firmware v2.03
Sigma · Released Aug 20, 2020 · First seen by GearPulse Jul 5, 2026
What's in this update
It has optimized the exposure during viewfinder shooting when used in combination with the EOS 90D and the EOS-1D X Mark III.It has fixed a rarely-occurring communication problem during Live View shooting when mounted on the EOS-1D X Mark III.
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