Fujifilm X-T1 firmware v4.31

Fujifilm · First seen Jul 4, 2026

v4.31 is not the latest firmware for the Fujifilm X-T1: the current version is v5.52 (September 17, 2020). Go to v5.52

What's in this update

The firmware update Ver.4.31 from Ver.4.30 incorporates the following issues:

  • The accuracy of Manual focus adjustment will be enhanced when using lenses below.
  • XF35mmF2 R W​R
  • XF90mmF2 R LM WR
  • XF10-24mmF4 R OIS
  • XF16-55mmF2.8 R LM WR
  • XF18-55mmF2.8-4 R LM OIS
  • XF18-135mmF3.5-5.6 R LM OIS WR
  • XF50-140mmF2.8 R LM OIS WR
  • XF55-200mmF3.5-4.8 R LM OIS
  • XF100-400mmF4.5-5.6 R LM OIS WR
  • XC16-50mmF3.5-5.6 OIS​ II
  • XC50-230mmF4.5-6.7 OIS II
  • It is necessary to upgrade the firmware of lenses above at the same time.

Camera Body / Lens Firmware Compatibility Table

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Other versions for this product

See the full firmware history for the X-T1