Sigma 17-70mm F2.8-4 DC MACRO OS HSM | Contemporary (Canon EF mount)
firmware v1.02
Sigma · Released Oct 3, 2014 · First seen Jul 5, 2026
v1.02 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
Enables autofocus at any aperture with Canon EOS C100; requires SIGMA Optimization Pro v1.2.0 first.
- Autofocus supported at any aperture value with Canon EOS C100
- SIGMA Optimization Pro v1.2.0 must be installed before updating
Written from Sigma's release notes, which are printed in full below.
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What's in this update
Autofocus is supported at any aperture value when used with the Canon Digital Cinema Camera EOS C100. Note: Before upgrading the firmware of 17-70mm F2.8-4 DC MACRO OS HSM C013, please first update your SIGMA Optimization Pro to Ver1.2.0.
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