Sigma 120-300mm F2.8 DG OS HSM | Sports (Canon EF mount)
firmware v2.02
Sigma · Released Jul 21, 2020 · First seen Jul 5, 2026
v2.02 is the latest firmware for the Sigma 120-300mm F2.8 DG OS HSM / Sports (Canon EF mount), released July 21, 2020.
In short — summary by updatemystuff.com
Fixed exposure and communication issues, improved autofocus with mount converters.
- Fixed viewfinder exposure on Canon EOS 90D and 1D X Mark III
- Corrected rare communication issue in Live View on EOS-1D X Mark III
- Improved autofocus with Sigma mount converters
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 when shooting with the viewfinder on the EOS 90D and EOS-1D X Mark III.It has corrected a rarely-occurring communication problem when shooting in Live View on the EOS-1D X Mark III.It has improved the AF performance when the lens is used in combination with the SIGMA MOUNT CONVERTER MC-11 or MC-21.It has optimized the operation of Mode 2 of the Optical Stabilizer (OS) when used in combination with the SIGMA MOUNT CONVERTER MC-21.
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