The Sigma EF-630 is a high-powered external flash unit for Nikon i-TTL cameras with a guide number of 63 at ISO 100/200mm and built-in wide-angle diffuser. It supports i-TTL auto exposure, HSS high-speed sync, and multi-flash modes for Nikon DSLR systems. The EF-630 is Sigma's flagship external flash.
Product released: February 1, 2016
Latest firmware version
Version 1.03, released August 5, 2021
Last checked for updates: Nov 1, 2026 05:38 UTC
What's new in version 1.03
It has changed the term of flash function to “Transmitter (TX) / Receiver (RX) Receive & Flash (R & FL)”.It adds compatibility with the Nikon Z 7II, D6, and D780.
LatestUpdate has tracked 3 versions of Sigma Electronic Flash EF-630 (Nikon F) firmware, released between December 22, 2017 and August 5, 2021.
Version 1.03 - August 5, 2021: It has changed the term of flash function to “Transmitter (TX) / Receiver (RX) Receive & Flash (R & FL)”.It adds compatibility with the Nikon Z 7II, D6, and D7…
Version 1.02 - May 23, 2019: It has become compatible with the Z7 and Z6 mirrorless cameras.It has corrected the phenomenon whereby it shows overexposure on the slave side when it is used…
Version 1.01 - December 22, 2017: It has become compatible with the Z7 and Z6 mirrorless cameras.It has corrected the phenomenon whereby it shows overexposure on the slave side when it is used…
The Sigma EF-630 is a high-powered external flash unit for Nikon i-TTL cameras with a guide number of 63 at ISO 100/200mm and built-in wide-angle diffuser. It supports i-TTL auto exposure, HSS high-speed sync, and multi-flash modes for Nikon 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 of Sigma Electronic Flash EF-630 (Nikon F)?
The latest firmware version of Sigma Electronic Flash EF-630 (Nikon F) is 1.03. It was released on August 5, 2021.
What changed in Sigma Electronic Flash EF-630 (Nikon F) firmware version 1.03?
Sigma Electronic Flash EF-630 (Nikon F) firmware version 1.03 includes the following changes: It has changed the term of flash function to “Transmitter (TX) / Receiver (RX) Receive & Flash (R & FL)”.It adds compatibility with the Nikon Z 7II, D6, and D780.
Where can I download the latest Sigma Electronic Flash EF-630 (Nikon F) firmware?
Details and download instructions for the latest Sigma Electronic Flash EF-630 (Nikon F) firmware (version 1.03) are on Sigma's official release page: https://www.sigma-global.com/en/support/firmware/ef-630/?mount=nikon-f
How often does Sigma release firmware updates for Sigma Electronic Flash EF-630 (Nikon F)?
We have tracked 3 firmware versions of Sigma Electronic Flash EF-630 (Nikon F).