Thank you for purchasing and using our products.

Sigma Corporation is pleased to announce that new firmware for the SIGMA ELECTRONIC FLASH EF-630 for SIGMA is available for download using the SIGMA FLASH USB DOCK FD-11 and the SIGMA Optimization Pro software.

For customers who own the following applicable product and also SIGMA FLASH USB DOCK FD-11, please update the firmware using SIGMA Optimization Pro.

For customers who do not own SIGMA FLASH USB DOCK FD-11, the lens firmware update will be provided free of charge.
Please contact the nearest authorized subsidiary/distributor of SIGMA.

【Applicable product】

【Benefits of this firmware update】

  • The LCD Panel Light is now kept on continuously while selecting 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 from the following Download page before updating the firmware.
*It takes about 3 minutes to update.

【SIGMA Optimization Pro Download page】 

We appreciate your continued support for our company and products.