Fotodiox Vizelex ND Throttle Fusion Smart AF Lens Adapter - Canon EOS (EF/EF-S) D/SLR Lens for Fujifilm X Series Mirrorless Cameras with Fully Automatic Functions and Built-in Variable ND Filter (2 to 8 Stops)

Lens adapter


Compatibility list for Fuji X series cameras with Fusion adapters

Fuji X Series Mirrorless Cameras – The most popular models include:

* A notice - Adapter will NOT Recommended for the camera model Fuji X-T200, it does not focus and the image flickers
  • • Fujifilm X-Pro1, X-Pro2, X-Pro3, X-E1, X-E2, X-E2s, X-E3, X-E4
  • • Fujifilm X-T1, X-T2, X-T3, X-T4, X-T5, X-T10, X-T20, X-T30, X-T30 II
  • • Fujifilm X-H1, X-H2, X-H2S, X-S10, X-S20
  • • Fujifilm X-M1, X-A1, X-A2, X-A3, X-A5, X-A7, X-A10, X-A20, X-T100

  • Product highlights:

  •  Mounts Canon EOS (EF/EF-S) D/SLR lenses to Fujifilm X-mount mirrorless digital cameras; Focus guaranteed at infinity or beyond
  •  Built-in FUSION technology restores automatic features such as autofocus, aperture control, image stabilization and more to most lenses with compatible lenses
  •  Built-in variable neutral density filter ND4-256 (2-8 stops) for easy and convenient image control via any lens you attach
  •  Improved workmanship and high-precision construction for demanding professionals; Focus guaranteed at infinity or beyond; Precise fit, no play, gaps or wobble




  • Mount vintage lenses on digital cameras

    Whether you're shooting digital or film, Fotodiox offers the world's largest selection of lens adapters. Combine camera/lens platforms or give new life to vintage glass; Fotodiox offers hundreds of ways to attach lenses to your DSLR or SLR camera. Our adapters offer infinite focus, manual aperture control and a robust construction for lasting quality.



    FUSION technology restores automated functions

    Sometimes you need more than a simple adapter to attach a lens to a camera - you need real power. Take control of the electronic functions of your lenses with a FUSION lens adapter. The FUSION technology integrated into the adapter enables electronic communication between different lens and camera platforms. FUSION adapters enable autofocus, aperture control, image stabilization and more. This adapter allows EXIF ​​and aperture data to be transmitted to and controlled by the camera. Different lenses may have different operating characteristics depending on their age and manufacturer. We recommend testing individual lenses in your setup before taking critical shots.

    Fusion Smart AF lens adapters also feature a micro USB port that allows for firmware updates, making them a near future-proof solution. For firmware updates and instructions, see the firmware update article for this adapter in the Fotodiox Technical Support Knowledge Base.



    Integrated variable neutral density from 2-8 levels

    The Vizelex ND Throttle is known for its integrated variable neutral density filter, which allows for light reduction of 2 to 8 stops. This adapter concept was praised by filmmakers and now Fotodiox has optimized the adapter for the same audience. The new Vizelex Cine ND Throttle now features a gear rotating ring for more precise ND selections and can be used with follow focus accessories. This small change makes the Vizelex Cine ND Throttle a versatile tool for any videographer.

    The Vizelex Cine ND Throttle reduces the light transmission by one level in its “Min” position. The adapter helps maintain a shallow depth of field in bright conditions and eliminates the hassle of changing filters every time exposure changes. With the filter on the back, the image quality is better than if the same filter were placed on the front of a lens. The variable ND filter is made of optical polycarbonate (CR39) for clarity and durability.



    all-metal construction; safe and secure fit

    Fotodiox employs professional photographers in Allen areas of development and design to create products that are built to last. The Pro Series adapters are designed to withstand the rigors and demands of professional photographers. Our adapters are manufactured to precise tolerances and provide a solid, gap-free, wobble-free connection for stress-free use. No adjustments required! Fotodiox adapters can be removed and reattached to your camera as needed, remaining as precise as the day you purchased them.

    Fotodiox Pro adapters are made entirely of metal with no plastic to create a secure connection between your glass and your camera that will not wear out over time, ensuring the connection between lens and camera remains secure with every use. We use chrome plated brass brackets for improved durability and reliability. Our 24-month Fotodiox manufacturer's warranty applies to all Fotodiox products.


  • • The automatic FUSION features are specifically designed for D/SLR photographic lenses, and although cinema and/or broadcast style lenses may physically fit on the mount, the electronic features may not work depending on the lens used.
  • • Although EF-S lenses can be mounted and will work, due to the nature of the APS-C crop factor of the lens, they are not recommended on the larger GFX format as vignetting is inevitable.
  • • Autofocus may be disabled on older Canon lenses and some third-party lenses (Sigma, Tamron and Tokina lenses).
  • • Third party lenses like Sigma or Tamron lenses have more problems with autofocus.
  • • Autofocus may be slow or not work at all on lenses of different models and even on different lenses of the same model.
  • • Lenses with longer focal lengths tend to have more autofocus problems with the auto adapter.
  • • Not all Canon compatible lenses perform equally well depending on: internal lens motors, firmware versions, lens age, etc.
  • • Continuous AF and Video AF are not supported as the performance may be unsatisfactory.
  • • Switching between image and video may cause the camera to freeze.
  • • Switching aperture levels in video mode may result in white flashes in the video.
  • • Certain video modes may cause the camera to freeze.

  • All images are for illustrative purposes only. Actual product may vary slightly due to ongoing design improvements.


    Lens mountCanon EOS (EF / EF-S) D/SLR lens
    Camera mountFujifilm X series mirrorless camera
    Technical data8.1 x 7.1 x 3.2 cm (3.2 x 2.8 x 1.3 inches)
    6.1oz (0.4lb)
    Shipping dimensions5 x 5 x 5 inches (12.7 x 12.7 x 12.7 cm)
    1.3 pounds (21 ounces)
    ManufacturerFotodiox Inc.
    guaranteeLimited to 24 months


    Firmware Lens Adapter: Firmware update: Vizelex ND Throttle Fusion Smart AF Lens Adapter - Canon EOS (EF / EF-S) D/SLR lens for Fujifilm X-Series mirrorless cameras with fully automatic functions and built-in variable ND filterUpdated 3 months ago

    Item number: EF-FX-FSN-NDT
    UPC: 847372052332
    ASIN: B08D1YV487

    LM-FXRF-PRN



    Adapter firmware updates

    Version 1.22March 31, 2021Click here to download

    Updating the firmware version
    * AT Currently this firmware only works on PCs. We are actively working to fix this for MAC OS
    . 1. Download the ZIP file from the link above and unzip the file.
    2. Connect the EOS FXRF Pro Fusion adapter (if the adapter drive folder does not open automatically, locate and open the adapter drive folder).
    3. Drag the extracted files into the adapter drive folder
    . 4. Wait for the copying process to complete. The adapter folder window may disappear.
    5. When you're finished, eject the adapter drive from the computer.



    Fuji X camera compatibility chart

    Fujifilm X-Mount Cameras – The most popular models tested include:

    • Fujifilm X-Pro1, X-Pro2
    • Fujifilm X-T1, X-T2, X-T3
    • Fujifilm X-T10, X-T20, X-T30, X-T100
    • Fujifilm X-E1, X-E2, X-E2s, X-E3
    • Fujifilm X-A1, X-A2, X-A3, X-A5, X-A7, X-A10
    • Fujifilm X-H1, X-M1

    Sometimes you need more than a simple adapter to attach a lens to a camera - you need real power. Take control of the electronic functions of your lenses with a FUSION lens adapter. The FUSION technology integrated into the adapter enables electronic communication between different lens and camera platforms. FUSION adapters enable autofocus, aperture control, image stabilization and more. This adapter allows EXIF ​​and aperture data to be transmitted to and controlled by the camera. Different lenses may have different operating characteristics depending on their age and manufacturer. We recommend testing individual lenses in your setup before taking critical shots. Fotodiox employs professional photographers in Allen areas of development and design to create products that are built to last