Fujiguys: Fujifilm X-T3 FW 4.00 AF Update Explained

Fujifilm released firmware 4.00 for the Fujifilm X-T3 the other day and it brings the cameras AF system up to being onpar with the Fujifilm X-T4. The update brings:

  • AF speed comes down from 0.06 to 0.02 seconds for aquiring focus lock
  • Updated AF tracking performance that doubles the X-T3 speed to match the X-T4
  • The tracking box has also been updated to be like the X-T4 UI
  • Face and Eye AF has been improved because the algorythem was rewritten to double the performance in Face and Eye AF modes
  • Can now focus down to -7Ev, but requires the XF50mm f/1 to acomplish
  • AF range limiter added for photo and video mode
  • Change AF focus box size while filming
  • Photoratings can be read by third party software
  • Focus point can be changed with the joystick during AE lock

Fujifilm X-T News, Rumors, and Collaboration
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Fujifilm X-T Page

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