Fringer Canon EF to Fujifilm GFX firmware `v1.20`

Fringer · Released Mar 5, 2022 · First seen Jul 19, 2026

v1.20 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

Fixed AF performance issues for some lenses of the following models: Lens didn’t get recognized by the adapter due to different lens version.
Canon EF 400mm f/5.6L USM
SIGMA 14mm F1.8 DG HSM A017
Added following lenses to the tested and optimized lens list:
Canon EF 200mm f/1.8L USM
Canon EF 200mm f/1.8L USM + 1.4X
Canon EF 200mm f/1.8L USM + 2X
SIGMA APO MACRO 180mm F2.8 EX DG OS HSM
SIGMA APO MACRO 180mm F2.8 EX DG OS HSM + 1.4X
SIGMA 50mm f/1.4 EX DG HSM
TOKINA Opera 50mm f/1.4 FF
Issue fixed: Lens names recorded in EXIF for the following lens are not accurate.
Canon TS-E 90mm f/2.8
Contrast AF issues fixed for some of SIGMA70/2.8ART lenses. To apply the patch, edit SETTINGS.INI on the adapter and change the value of “Sigma70ArtFix=” from 0 to 1.

Note: There are two versions of SIGMA70/2.8Art in the market.

One of them doesn’t work properly on GFX50S/50R/50SII cameras with severe focus shifting and focus hunting problems.

The other version works normally.

The two versions can’t be identified by the appearance of the lens.

Thus, please turn on the patch only if you encountered the said issues.

Or it may cause other problems.

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