Sigma ELECTRONIC FLASH EF-630 (SIGMA SA-mount) firmware

Firmware history

1. Version 1.05 Latest Released Aug 5, 2021 First seen Jul 5, 2026
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   It has changed the te​rm of flash function to “Transmitter (TX) / Receiver (RX) Recei​ve & Flash (R & FL)”.

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2. Version 1.04 Released Jun 12, 2018 First seen Jul 5, 2026

   Fixed occasional communication loss after the flash recovers from Auto Power Off. — summary by updatemystuff.com

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   It has corrected the phenomenon where it occasionally stops communicating after rec​overing 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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3. Version 1.03 Released Dec 22, 2017 First seen Jul 5, 2026

   Fixes distance display unit switching in custom mode and occasional unintended flashing with Sync Terminal use. — summary by updatemystuff.com

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   It corrects the phenomenon that the distance display cannot be switched between meters and feet in custom​ mode. It corrects the phenomenon that it occasionally flashes unintentionally when the Sync. Terminal is used.

   • Please ensure to update SIGMA Optimization Pro to Ver1.4.1 for Windows, and Ver1.4.0 fo​r Macintosh before updating the firmware.
   • It takes about 3 minutes to update the firmware.
   Release notes & download
4. Version 1.02 Released Mar 30, 2017 First seen Jul 5, 2026

   Adds sd Quattro camera support and improves color reproduction in Flash mode. — summary by updatemystuff.com

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   It has supported the sd Quattro camer​a’s firmware which improves the color reproduction when the Flash mode is selected in the White balance setting.

   • It is necessary to update SIGMA sd Quattro camera’s firmware to the latest version.
   • The firm​ware can be updated using SIGMA FLASH USB DOCK FD-11 for SIGMA.
   • Please ensure to update SIGMA Optimization Pro to Ver1.4.1 for Windows, and Ver1.4.0 for Macintosh before updating the firmware.
   • It takes about 3 minutes to update.
   Release notes & download
5. Version 1.01 Released Sep 16, 2016 First seen Jul 5, 2026

   LCD remains lit during menu navigation, two-stage caution prevents overheating, serial number display corrected. — summary by updatemystuff.com

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   The LCD Panel Light is now kept on continuously while selectin​g DISPLAY SETTING.It has changed the setting of Caution display to be two-stage to prevent overheating of the flashgun’s circuitry after continuous firing.

   It has corrected the phenomenon where the correct serial number was not displayed.

   • Please check if correct serial number is displayed by reconnecting the ELECTRONIC FLASH EF-630 after completing​ the firmware update.
   • If you are using SIGMA Optimization Pro Ver1.3 or earlier, please ensure to update it to Ver1.3.1 before updating the firmware.
   • It takes about 3 minutes to update.
   Release notes & download