120-300mm F2.8 DG OS HSM | Sports (SIGMA SA-mount) firmware v1.01
Sigma · Released Oct 23, 2014 · First seen by GearPulse Jul 5, 2026
What's in this update
It has optimized the lens firmware for the SIGMA TELE CONVERTER TC-1401 and TC-2001.The Auto Focus speed has been improved on “Standard” and “Speed-priority” mode has been improved.Note: Before upgrading the firmware of 120-300mm F2.8 DG OS HSM S013, please first update your SIGMA Optimization Pro to Ver1.2.0. Note: Updating the lens firmware to the latest version will optimize the lens for the new tele converters, however it will become incompatible with the conventional APO TELE CONVERTER 1.4x EX DG and APO TELE CONVERTER 2x EX DG.
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