Viltrox EF-FX2 0.71x Lens Mount Adapter for Canon EF-Mount Lens to FUJIFILM X-Mount Camera

BH #VIEFFX2 • MFR #EF-FX2
Viltrox EF-FX2 0.71x Lens Mount Adapter for Canon EF-Mount Lens to FUJIFILM X-Mount Camera
Key Features
  • Canon EF-Mount Lens to FUJIFILM X-Mount Camera
This 0.71x Lens Mount Adapter from Viltrox allows a full-frame Canon EF-mount lens to be mounted onto a FUJIFILM X-mount camera. While doing so, the adapter's optics help to maximize the connected lens's apparent angle of view while providing a one-stop increase for the camera over the lens's aperture range.
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Viltrox EF-FX2 Overview

This 0.71x Lens Mount Adapter from Viltrox allows a full-frame Canon EF-mount lens to be mounted onto a FUJIFILM X-mount camera. While doing so, the adapter's optics help to maximize the connected lens's apparent angle of view while providing a one-stop increase for the camera over the lens's aperture range.

If a lens intended for 35mm film or similarly-sized full-frame camera sensors is connected to a FUJIFILM X-mount camera, it would project an image larger than the camera's APS-C sized sensor was built to accept. Able to capture only the center portion of the projected image, the effective angle of view of the lens would be narrowed, creating an in-camera "crop factor." This adapter condenses the light from a lens designed for 35mm film or "full frame" camera sensors and projects it onto a FUJIFILM X-mount camera's APS-C sensor. This allows the APS-C sensor to utilize more of the light gathered by a connected lens, which effectively reduces the crop factor while making available to the sensor an additional one stop of light for each of the lens's f/stop settings.

If a compatible lens includes autofocus, as well as camera-controlled aperture functions, this adapter is intended to allow those features to be used. Also, if an attached lens is capable of generating Exif metadata when used with a directly compatible camera, this adapter is designed to allow that information to be saved along with image files generated with a combination of the lens, a compatible FUJIFILM X-mount camera, and the adapter.

This adapter is constructed with four lens elements in four groups that are designed to provide optical clarity as well as color fidelity, and the underside of its detachable tripod foot is tapped with a 1/4"-20 accessory thread, enabling direct attachment to tripods or quick release plates that feature 1/4"-20 mounts. For ease of upgrading its firmware, this adapter also includes a micro-USB port.

  • Due to its physical design, this adapter is not suitable for use on the FUJIFILM X-Pro3 camera and may scratch the camera body if attached
  • Maximizes apparent angle of view of combined camera and lens
  • Provides a one-stop increase for the camera over the lens's aperture range
  • Four lens elements in four groups for optical clarity as well as color fidelity
  • Supports electronic communication between camera and lens to enable autofocus, on-camera aperture control, and Exif metadata generation when possible
  • Detachable tripod foot with 1/4"-20 accessory thread for direct attachment to tripods or quick release plates that feature 1/4"-20 mounts

Viltrox EF-FX2 Specs

Adapter
Camera MountFUJIFILM X
Lens MountCanon EF
Magnification0.71x
Optical Design4 Elements in 4 Groups
Physical
Tripod Mounting Thread1/4"-20 Female
Dimensionsø: 2.7 x D: 1.1" / ø: 68.0 x D: 27.0 mm
Weight5.11 oz / 145 g
Packaging Info
Package Weight0.61 lb
Box Dimensions (LxWxH)4.5 x 4 x 2.5"
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What version is this? Viltrox's site show's a ...

What version is this? Viltrox's site show's a newer version with the usb on the inside.
Asked by: Joseph
This is the second version of the adapter which does have the USB port inside it. Our image is incorrect and we're working on correcting it.
Answered by: Ryan
Date published: 2021-02-25

I currently have a canon m50 and I'm looking for ...

I currently have a canon m50 and I'm looking for adapter so I can attach my rokinon 35mm canon ef to, is "viltron ef-eos m2 0.71x lens mount adapter" the right adapter? Thanks
Asked by: Adrian
I purchase my M50 last year along with the Viltrox EF-EOS M2 0.71x Lens Mount Adapter for Canon EF-Mount Lens to Canon EF-M-Mount Camera. It works fine with my EF 50mm. It also mounts well on my tripod.
Answered by: COLVON
Date published: 2021-02-12

I have a canon m50 and Lim looking for an adapter ...

I have a canon m50 and Lim looking for an adapter so I can attach my 35mm rokinon canon ef lens, is viltox ef-eos m2 the correct adapter? Thanks
Asked by: Adrian
I use it to attach canon ef/ef-s lens to my m50. Be warned there is a crop factor.
Answered by: Danny
Date published: 2021-02-12

Has anyone has a problem with this installing it ...

Has anyone has a problem with this installing it on the Black Magic Pocket 4k?...it doesn’t fit on it
Asked by: Erick
It is not made for the Black Magic camera. You would need this version instead: https://bhpho.to/2MXlorM
Answered by: Dan
Date published: 2021-01-17

Will this work on the GH5?

Will this work on the GH5?
Asked by: Matthew
No, it will not. The Viltrox EF-EOS M2 0.71x Lens Mount Adapter listed above is designed to connect Canon EF-mount lenses onto Canon mirrorless digital cameras that use the Canon EF-M lens mount. If you own a Panasonic Lumix DC-GH5 Mirrorless Digital Camera and want to use a Canon EF-mount lens, you would instead need to purchase the Viltrox EF-M2 II Canon EF Lens to Micro Four Thirds Camera Mount Adapter, B&H # VIEFM2II, for your usage needs
Answered by: Manzell
Date published: 2021-01-09

I see on a lot of videos that the EF-M2 fits on ...

I see on a lot of videos that the EF-M2 fits on the GH5. I was told this one doesn't fit in the Q&A. Why doesn't it and what model does so I can attach my Canon lenses?
Asked by: Matthew
This adapter is not for the micro four thirds mount that the GH5 has. It is for attaching a Canon EF lens from their DSLR's onto the Canon EF-M mirrorless cameras.
Answered by: Luis L
Date published: 2021-01-06

Will this work with an A7R4?

Will this work with an A7R4?
Asked by: Daniel
Yes this adapter can work with the Sony A7R IV.
Answered by: Kirk
Date published: 2020-12-17

Hello, is this speedbooster EF-E II compatible ...

Hello, is this speedbooster EF-E II compatible with the Canon (manual focus) TS-E 17mm F/4 lens (tilt shift lens), on a Sony APSC camera? Thanks
Asked by: Vladimir
The Viltrox EF-E II 0.71x Lens Mount Adapter for Canon EF-Mount Lens to Select Sony E-Mount Cameras would allow you to mount the Canon TS-E 17mm f/4L Tilt-Shift Lens onto a Sony E-mount camera. However, due to the ability of the lens to shift and rotate, we cannot guarantee that your particular camera will have enough clearance for the movements of the tilt-shift lens, and we do not have the ability to test each lens on each camera for full usage. As such, if the lens mount adapter does not work as needed for your planned usage, do note the lens mount adapter may be returned within 30 days of the original purchase date for an exchange or refund.
Answered by: Manzell
Date published: 2020-10-20
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