The Sigma EF-630 is a high-powered external flash unit for Sigma SA mount cameras with a guide number of 63 at ISO 100/200mm and wide-angle diffuser. It supports TTL auto exposure, HSS high-speed sync, and multi-flash modes for Sigma DSLR systems. The EF-630 is Sigma's flagship external flash.
Product released: February 1, 2016
Latest firmware version
Version 1.05, released August 5, 2021
Verified by LatestUpdate: June 18, 2026
What's new in version 1.05
It has changed the term of flash function to “Transmitter (TX) / Receiver (RX) Receive & Flash (R & FL)”.
What is the Sigma Electronic Flash EF-630 (Sigma SA)?
The Sigma EF-630 is a high-powered external flash unit for Sigma SA mount cameras with a guide number of 63 at ISO 100/200mm and wide-angle diffuser. It supports TTL auto exposure, HSS high-speed sync, and multi-flash modes for Sigma DSLR systems. The EF-630 is Sigma's flagship external flash. It was originally released on February 1, 2016.
What is the latest firmware version for the Sigma Electronic Flash EF-630 (Sigma SA)?
The latest firmware version for the Sigma Electronic Flash EF-630 (Sigma SA) is 1.05. It was released on August 5, 2021.
What changed in Sigma Electronic Flash EF-630 (Sigma SA) firmware version 1.05?
Sigma Electronic Flash EF-630 (Sigma SA) firmware version 1.05 includes the following changes: It has changed the term of flash function to “Transmitter (TX) / Receiver (RX) Receive & Flash (R & FL)”.
How do I update the Sigma Electronic Flash EF-630 (Sigma SA) firmware?
To update the Sigma Electronic Flash EF-630 (Sigma SA) firmware, download the latest version (1.05) from Sigma's website. Follow Sigma's installation instructions, which typically involve copying the firmware file to a memory card or connecting via USB. You can download the latest firmware from Sigma's support page.
Where can I download the latest Sigma Electronic Flash EF-630 (Sigma SA) firmware?
Details and download instructions for the latest Sigma Electronic Flash EF-630 (Sigma SA) firmware (version 1.05) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/ef-630/?mount=sigma-sa
How do I check for Sigma Electronic Flash EF-630 (Sigma SA) firmware updates?
You can track Sigma Electronic Flash EF-630 (Sigma SA) firmware updates automatically on LatestUpdate.io. We monitor Sigma's releases and notify you when new firmware versions are available, so you never miss an update.
How often does Sigma release firmware updates for the Sigma Electronic Flash EF-630 (Sigma SA)?
We have tracked 5 firmware versions for the Sigma Electronic Flash EF-630 (Sigma SA). Sigma releases updates to fix bugs, improve performance, and add new features. Track this product on LatestUpdate.io to be notified of future releases.
Who makes the Sigma Electronic Flash EF-630 (Sigma SA)?
The Sigma Electronic Flash EF-630 (Sigma SA) is manufactured by Sigma. Visit the official product page for more information.