Fringer Canon EF to Fujifilm X firmware v2.50

Fringer · Released Nov 16, 2023 · First seen Jul 19, 2026

v2.50 is not the latest firmware for the Fringer Canon EF to Fujifilm X: the current version is v3.10 (September 29, 2026). Go to v3.10

What's in this update

  1. Fixed PDAF issues for some lenses of the following models: Lens didn’t get recognized by the adapter due to differ​ent lens version.
  2. Canon EF 300mm f/4L USM
  3. Added following lenses to the tested and optimized lens list:
  4. Canon EF 8-15mm f/4L Fisheye USM
  5. Tokina AT-X M100 PRO D Macro 100mm f/2.8
  6. Fixed AF-not-working issue for the following lens and TC combinations:
  7. EF 100-400mm f/4.5-5.6L IS USM + 1.4​X
  8. Fixed IBIS issues for the following lenses:
  9. Canon TS-E 90mm f/2.8
  10. Bug fixed: under some circumstances TAMRON SP 70-300mm f/4.0-5.6 Di VC USD A005 can’t be recognized by the adapter.

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Other versions for this product

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