Fujifilm GFX 50S firmware `v4.20`

Fujifilm · First seen Jul 4, 2026

v4.20 is not the latest firmware for the Fujifilm GFX 50S: the current version is v4.52 (November 28, 2024). Go to v4.52

What's in this update

The firmware update Ver.4.20 from Ver.4.10 incorporates the following issues:

Display of IP ADDRESS in Setup Menus > CONNECTION SETTING > INFORMATION is added.
Improvement of shutter speed setting for TTL slow sync flash shooting In P and A mode, this firmware makes the slowest shutter speed slower than 1/8 sec. for the shooting used in a scene where relatively long exposure is required (ex. a flash shooting with night view background). In case the shutter speed setting is AUTO, the shutter speed becomes max. 4 sec in P mode and max. 30 sec. in A mode.
Fix of minor bugs.

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