ELECTRONIC FLASH EF-630 (Canon EF mount) firmware v1.03
Sigma · Released Jun 12, 2018 · First seen by GearPulse Jul 5, 2026
What's in this update
It has corrected the phenomenon where it does not flash properly after recovering from Auto Power Off. * SIGMA FLASH USB DOCK FD-11 for SIGMA with firmware Ver.1.01 will be required to update the firmware.* Before updating the firmware of the SIGMA ELECTRONIC FLASH EF-630, please update SIGMA Optimization Pro to Ver. 1.4.1 or later for Windows, and Ver. 1.4.0 or later for Macintosh.* It takes about 3 minutes to update the firmware.
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