FUJIFILM X-T3 Firmware Update v4.00 – Autofocus Performance Now Similar to X-T4

November 2nd, 2020 Jump to Comment Section
FUJIFILM X-T3 Firmware Update v4.00 - Autofocus Performance Now Similar to X-T4

FUJIFILM has released a firmware update for the FUJIFILM X-T3 that improves autofocus performances of the mirrorless camera. According to the company, FUJIFILM’s X-T3 firmware update v4.00 will now bring similar autofocus performance as with the X-T4, thanks to a new algorithm. Let’s take a closer look at it!

FUJIFILM X-T3 Firmware Update v4.00

The FUJIFILM X-T3 came out in September 2018 (our review here), and even after the release of the X-T4 in February 2020 (our review here), it’s nice to see that the company still releases firmware updates to improve one of the best mirrorless cameras in the market.

The FUJIFILM X-T3 firmware update v4.00 has just landed and brings a couple of autofocus improvements to the camera. According to FUJIFILM, “the update will improve the autofocusing performance of the X-T3 to the same level as the FUJIFILM X-T4”, which sounds impressive.


Below are all the details of this firmware update:

  • The fastest AF speed has been improved from 0.06 seconds to 0.02 seconds, equivalent to the performance of the X-T4.
  • The algorithm for predicting subject movements has been updated.
  • AF tracking performance has been doubled. Press the shutter button halfway down when a subject is in the focus area to maintain focus on the subject with a higher accuracy level.
  • The Face Tracking / Eye AF performance has been upgraded. The algorithm has been re-written to double the tracking performance of the Eye AF in continuous shooting modes.
  • The update allows the camera’s AF to work in low light levels down to -7EV, facilitating fast and highly accurate phase-detection AF even in near darkness.
  • The new firmware adds the “Focus Limiter” function, which gives a pre-defined specific focus range.
  • The size of the Single AF point can be adjusted during video recording.
  • Photo ratings can be read by third-party software, allowing users to find their favorite pictures quickly.
  • The focus lever can change the focus point during the AE lock.
  • The default setting of the AF-S PRIORITY SELECTION in the RELEASE/FOCUS PRIORITY of the SHOOTING menu is changed to FOCUS from RELEASE.
  • Fix of minor bugs.

All these updates are much welcome, and not firmware crippling a camera is a really smart move from FUJIFILM. The FUJIFILM X-H1 also received a firmware update version 2.11 that fixes a couple of minor bugs.

Price and Availability

These firmware updates are available now, free of charge. You can download the FUJIFILM X-T3 firmware update v4.00 by clicking here, and the latest FUJIFILM X-H1 firmware here.

What do you think about this firmware update? Are you still shooting with your X-T3, or did you upgrade to the X-T4? Don’t hesitate to let us know in the comments below!

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