Sigma 150-600mm F5-6.3 DG OS HSM | Contemporary (Canon EF mount)
firmware v2.03
Sigma · Released Aug 20, 2020 · First seen Jul 5, 2026
v2.03 is the latest firmware for the Sigma 150-600mm F5-6.3 DG OS HSM / Contemporary (Canon EF mount), released August 20, 2020.
In short — summary by updatemystuff.com
Improved exposure handling and fixed Live View communication issues with specific Canon EOS models.
- Optimized exposure during viewfinder shooting with EOS 90D and EOS-1D X Mark III
- Fixed rare communication problem during Live View shooting with EOS-1D X Mark III
Written from Sigma's release notes, which are printed in full below.
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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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