Sigma ELECTRONIC FLASH EF-630 (Nikon F mount) firmware v1.01

Sigma · Released Dec 22, 2017 · First seen Jul 5, 2026

v1.01 is not the latest firmware for the Sigma ELECTRONIC FLASH EF-630 (Nikon F mount): the current version is v1.03 (August 5, 2021). Go to v1.03

In short — summary by updatemystuff.com

Improves color tone in TTL, TTL-BL and manual flash modes

  • Color tone improved in TTL mode
  • Color tone improved in TTL-BL mode
  • Color tone improved in manual mode

Written from Sigma's release notes, which are printed in full below.

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What's in this update

It improves the color tone of “TTL”, “TTL-BL” and “MAN​UAL” modes.

  • Please ensure to update SIGMA Optimization Pro to Ver1.4.1 for Windows, and Ve​r1.4.0 for Macintosh before updating the firmware.
  • It takes about 3 minutes to update the firmware.

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Other versions for this product

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