Fujifilm has announced a major firmware update for its GFX 100 medium format camera will be arriving in June 2021. Firmware version 4.00 for the Fujifilm GFX 100 mirrorless camera will improve autofocus performance, update image stabilization components, add Fujifilm’s ‘Nostalgic Neg’ film simulation and more.

The first major improvement is to the autofocus system. Fujifilm says firmware version 4.00 will boost ‘AF speed and Face/Eye-detection performance, enhancing AF accuracy even in portrait photography that involves subject movements.’ Subject tracking performance will also been improved.

Fujifilm has also added ‘coordinated control’ of the GFX 100’s in-body image stabilization (IBIS) when used in conjunction with a lens’ optical image stabilization (OIS). With the 4.00 firmware update ‘Image stabilization is applied with optimum correction based on the two mechanisms’ acceleration, frequency detected by gyro sensors and the amount of camera shakes to minimize motion blur even when shooting handheld.’

Fujifilm’s ‘Nostalgic Neg’ Film Simulation will also be added to the GFX 100 in the version 4.00 update, alongside the following list of smaller fixes and improvements:

  1. The level of “clarity” can be set in the range from -5 to +5.
  2. The “tone curve” can be adjusted in the increment of 0.5 stop for both highlights and shadows.
  3. The “focus limiter” function is added to specify any focusing range. Choose the default focusing distance or select it from the specified range.
  4. Pictures can be enlarged in the magnification of 1x, 2x, 4x or 8x in playback. There is also an option to select the magnification used in the previous playback (from center). Function button can be assigned to switch “shooting mode” between P, S, A and M modes.
  5. The front and rear command dials can be set to rotate in a reverse direction.
  6. The number of items in the Q menu can be selected from 4, 8, 12 or 16 for both stills and video. The items to display in the Q menu are customizable.
  7. The Q button can be assigned as a function button.
  8. The camera stays ON even when an SD card is removed.
  9. Electronic image stabilization is available while shooting video.
  10. It corrects camera shake that occurs when shooting video handheld. (1.1x crop when this mode is turned on)
  11. Live View can be enlarged even while shooting video.
  12. The Focus Check Lock can now also be set to ON/OFF to maintain focus check or not when starting to shoot video.
  13. Video recorded in the SD card can be backed up to the SD card in another card slot.
  14. The elapsed video recording time can be displayed on the LCD for checking.
  15. The AF area size can be changed while shooting video.
  16. Video files recorded with F-log can be played back in conversion equivalent to BT.709.
  17. Added White Balance / ISO metadata to RAW footage, output to Atomos Ninja V HDR Monitor Recorder via HDMI.
  18. The footage is recorded as Apple ProRes RAW files and White Balance / ISO can be adjusted in Final Cut Pro.

Fujifilm notes as a precaution that firmware version 4.00 changes the menu structure slightly and renames a few functions. As such, Fujifilm suggests you ‘check the detailed information about this firmware on the official website before implementing the update.’ No specific date has been given for its release, but we will update you when the firmware goes live.