Viltrox EF‑FX2 is a 0.71× electronic Speed Booster for Canon EF lenses on FUJIFILM X cameras. It widens the field of view, increases effective brightness and transmits autofocus, aperture and EXIF data.
Viltrox EF‑FX2 is a 0.71× electronic Speed Booster for Canon EF lenses on FUJIFILM X cameras. It widens the field of view, increases effective brightness and transmits autofocus, aperture and EXIF data.

EF‑FX2 combines electronic control with built-in optics that shorten effective focal length and increase effective brightness by approximately one stop.
The 0.71× factor reduces the APS‑C crop effect.
Electronic contacts transmit focusing, aperture and EXIF depending on compatibility.
Firmware can be updated for additional lens and camera combinations.
The reducer concentrates the Canon EF lens image circle onto a FUJIFILM X sensor.


The bottom 1/4-inch thread supports the assembly on a tripod, cage or rig component.
| Manufacturer: | Viltrox |
| Category: | Adapters |
| For the lens | Canon EF |
| For the camera | FUJIFILM X |
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