The Viltrox EF-GFX Pro allows you to attach Canon EF/EF-S-mount lenses to FUJIFILM G-mount cameras with full electronic communication. An upgraded version of the original Viltrox EF-GFX adapter, the EF-GFX Pro adds an aperture ring, supports stabilization, and allows you to change focus mode from auto to manual. Autofocus is also faster and more stable. The firmware update port has also been changed from micro-USB to USB-C. Additionally, after power is turned off, the previous settings can be saved on the EF-GFX Pro.
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Key Features
- Built-In Aperture Ring
- Full Electronic Communication
- Stabilization Support
- AF/MF Focus Modes
The Viltrox EF-GFX Pro allows you to attach Canon EF/EF-S-mount lenses to FUJIFILM G-mount cameras with full electronic communication. An upgraded version of the original Viltrox EF-GFX adapter, the EF-GFX Pro adds an aperture ring, supports stabilization, and allows you to change focus mode from auto to manual. Autofocus is also faster and more stable. The firmware update port has also been changed from micro-USB to USB-C. Additionally, after power is turned off, the previous settings can be saved on the EF-GFX Pro.
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Viltrox EF-GFX PRO Overview
Viltrox EF-GFX PRO Specs
| Item Type | |
| Camera Compatibility | |
| Lens Compatibility | |
| Electronic Communication | |
| Included Shims | |
| Inputs/Outputs | |
| Materials | |
| Dimensions | |
| Weight |
Packaging Info
| Package Weight | |
| Box Dimensions (LxWxH) |
Viltrox EF-GFX PRO Reviews
Way better than expected
By John
Rated 5 out of 5
Date: 2026-02-03
I've found this adapter to be reasonably well functioning on my GFX100sII. In decent light, AF seems to be about on par with GF lenses in speed and accuracy. It's not as quick as EF lenses on EF bodies. Seems well made. I've used it with both Canon EF and Sigma EF lenses, works well with both.
Does Not Work with GFX100 II
By Tchen
Rated 1 out of 5
Date: 2023-11-14
Does not work with GFX100 II. Very disappointed as item description does not indicate which GFX models work and answered question by staff says it is compatible with GFX system. Also, it was listed on the FUJI GFX100 II page as a compatible lens adapter in the accessories module. When adapter is attached to the camera body it flickers and system is unstable. Threw away box and so unable to return.
See any errors on this page?
Does this adapter allow for auto focus using EF ...
Does this adapter allow for auto focus using EF lenses on Fuji GFX system?
Yes Viltrox EF-GFX Pro allows select Canon EF lenses to autofocus on Fuji GFX cameras.
Date published: 2023-06-06
What is the crop factor for using Canon lenses on ...
What is the crop factor for using Canon lenses on a GFX body. Is a Canon 50 act as a normal less, or like a longer lens?
The crop factor for the Fujifilm GFX100 is 0.79, so a 100mm lens will behave like a 79mm lens on the GFX100.
Date published: 2024-04-08
one of the reviews says it does not work with GFX ...
one of the reviews says it does not work with GFX 100 Mark 11 - this is what Im getting it for ...is this true ?? Thanks
The Viltrox EF-GFX Pro Canon EF/EF-S Lens to FUJIFILM G-Mount Camera Adapter is compatible with the GFX 100 II; if it doesn't work, it is defective and can be returned for a refund.
Date published: 2024-11-05