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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

Camera Mount
FUJIFILM X
Lens Mount
Canon EF
Magnification
0.71x
Electronic Communication
Yes
Optical Design
4 Elements in 4 Groups
Display
No
Tripod Mounting Thread
1/4"-20 Female
Dimensions
ø: 2.7 x D: 1.1" / ø: 68.0 x D: 27.0 mm
Weight
5.11 oz / 145 g
Packaging Info
Package Weight
0.615 lb
Box Dimensions (LxWxH)
5.7 x 4.7 x 2.4"

Viltrox EF-FX2 Reviews

See any errors on this page? Let us know

Is it compatible with the fujifilm XH2s? Any ...

Is it compatible with the fujifilm XH2s? Any special instructions to make it work?
Asked by: Jad
The Viltrox EF-FX2 0.71x Lens Mount Adapter for Canon EF-Mount Lens to FUJIFILM X-Mount Camera is compatible with the Fujifilm X-H2S. There are no special instructions for using this adapter.
Answered by: Boyd
Date published: 2023-10-24

Does it support for fuji xt-200

Does it support for fuji xt-200
Asked by: SARAN
Yes, the following unit will mount to Fuji xt-200 x-mount system.
Answered by: hectorm
Date published: 2021-10-01

Will this adapter allow for the use of EF-S ...

Will this adapter allow for the use of EF-S lenses?
Asked by: Joshua
On a M4/3 body, using APS-C lenses and Full-frame will work with no vignetting. On an APS-C body, only Full-frame lenses will work.
Answered by: Maxime
Date published: 2021-02-16

Does the EF - Fuji X version allow for infinity ...

Does the EF - Fuji X version allow for infinity focus?
Asked by: Christopher
No, the Viltrox EF-FX2 0.71x Lens Mount Adapter for Canon EF-Mount Lens to FUJIFILM X-Mount Camera, does not allow for "infinity focus".
Answered by: Lenny
Date published: 2020-04-26

Does it require charging?

Does it require charging?
Asked by: Thunderbulll
No. The Viltrox EF-FX2 draws power from the camera via its pin-connection and does not require batteries or charging.
Answered by: Jeremy
Date published: 2021-10-26

Would this adapter produce vignetting? I know the ...

Would this adapter produce vignetting? I know the Viltrox speed booster is ok in MFT but with an APS-C it should create severe darkness in the corners I presume?
Asked by: CARLOS
Just as long as you are using a Full Frame EF lens on this adapter there should be no vignetting.
Answered by: Joseph
Date published: 2019-06-04

So do I multiply my EF lens focal length by 0.71? ...

So do I multiply my EF lens focal length by 0.71? Like a 50mm lens is now a 35.5mm?
Asked by: zack
Yes. The Viltrox EF-FX2 0.71x Lens Mount Adapter for Canon EF-Mount Lens to FUJIFILM X-Mount Camera would convert a 50mm Canon lens to a 35.5mm. Also the aperture would effectively by wider so the 50mm f1.8 becomes a 35.5mm f1.4 lens.
Answered by: Dan
Date published: 2023-08-07

Will this adapter works on Sigma 17-50mm(canon ...

Will this adapter works on Sigma 17-50mm(canon mount) to Fujifilm X-T100?
Asked by: Darwin
Yes.
Answered by: hectorm
Date published: 2021-12-02
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