Sigma 17-70mm F2.8-4 DC MACRO OS HSM | Contemporary (Canon EF mount)
firmware v1.01
Sigma · Released Sep 20, 2013 · First seen Jul 5, 2026
v1.01 is not the latest firmware for the Sigma 17-70mm F2.8-4 DC MACRO OS HSM / Contemporary (Canon EF mount): the current version is v2.03 (October 21, 2021). Go to v2.03
In short — summary by updatemystuff.com
Improved optical stabilizer stability and refined autofocus algorithm to reduce operating noise.
- Improved optical stabilizer operation stability
- Refined autofocus algorithm to reduce operating noise
Written from Sigma's release notes, which are printed in full below.
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What's in this update
It has improved the stability of the Optical Stabilizer’s operation. It has refined the AF algorithm to reduce the operating noise.
- Please update to SIGMA Optimization Pro Ver1.2 before operating firmware update of 17-70mm F2.8-4 DC MACRO OS HSM C013.
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