Fringer Canon EF to Fujifilm GFX firmware v1.40

Fringer · Released Nov 23, 2022 · First seen Jul 19, 2026

v1.40 is not the latest firmware for the Fringer Canon EF to Fujifilm GFX: the current version is v2.30 (September 28, 2026). Go to v2.30

What's in this update

  1. Added fol​lowing lenses to the tested and optimized lens list:
  2. Canon EF 300mm f/2.8L IS USM
  3. Canon EF 300mm f/2.8L IS USM + 1.4X
  4. Canon EF 300mm f/2.8L IS USM + 2X
  5. Bug fixed: When using mechanical EF mount lenses without contacts, switching from playback mode to shooting mode may disable metering indicator on the screen.
  6. Fixed compatibility issues with LAOWA 105mm f/2 STF
  7. Added in-body vignetting and distortion correction profile for the following lenses.

Lens model Configuration item default Canon EF 70-300mm f/4-5.6L IS USM ForceNativeEF70300LIS= 1 Can​on EF 300mm f/2.8L IS II USM ForceNativeEF30028LIS2= 1 SIGMA 100-400mm F5-6.3 DG OS HSM C017 ForceNativeSigma100400OSC= 1 NOTE: In contrast to other lenses that already support this function, when turn on the in-body correction for these 3 lenses, IBIS may not work properly.

Please use lens IS instead or turn off the in-body correction if IBIS is higher

8

priority. To disable it for individual lens: change the corresponding configuration item’s value to 0.

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Other versions for this product

See the full firmware history for the Canon EF to Fujifilm GFX