Sigma ELECTRONIC FLASH EF-630 (Canon EF mount) firmware v1.05

Sigma · Released Aug 5, 2021 · First seen Jul 5, 2026

v1.05 is the latest firmware for the Sigma ELECTRONIC FLASH EF-630 (Canon EF mount), released August 5, 2021.

What's in this update

It has changed the term​ of flash function to “Transmitter (TX) / Receiver (RX) Recei​ve & Flash (R & FL)”.

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Other versions for this product

See the full firmware history for the ELECTRONIC FLASH EF-630 (Canon EF mount)