ELECTRONIC FLASH EF-630 (Nikon F mount) firmware v1.01
Sigma · Released Dec 22, 2017 · First seen by GearPulse Jul 5, 2026
What's in this update
It improves the color tone of “TTL”, “TTL-BL” and “MANUAL” modes. * Please ensure to update SIGMA Optimization Pro to Ver1.4.1 for Windows, and Ver1.4.0 for Macintosh before updating the firmware.* It takes about 3 minutes to update the firmware.
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