Fotodiox, Inc. USA

Fotodiox Pro Fusion Smart AF Adapter - Canon EOS (EF / EF-S) D/SLR Lens to Micro Four Thirds (MFT, M4/3) Mount Mirrorless Camera Body with Full

Fotodiox Pro Fusion Smart AF Adapter - Canon EOS (EF / EF-S) D/SLR Lens to - Main image
$145.03 $195.99 In stock

Category: Lens Mount Adapter

  • Description
  • Specs
  • Compatibility
  • Notes
  • • Mounts EF/EF-S Lenses to Micro Four Thirds Mount Cameras; infinity focus or beyond guaranteed
  • • FUSION technology enables electronic communication and control between lens and camera
  • • Restores automated functions (auto-focus, aperture control, image stabilization & more) w/ compatible lenses
  • • Precise fit and solid all-metal construction with chrome plated brass mounts for secure and solid fit; lens has no play, gap or wiggling when mounted on adapter and no adjustments required
  • • Limited 2-Year Manufacturer Warranty

Whether you're shooting digitally or on film, Fotodiox offers the world's largest selection of lens adapters. Mix camera/lens platforms or reinvigorate vintage glass; Fotodiox has hundreds of ways to mount lenses onto your DSLR or MILC camera. Our adapters deliver infinity focus and a sturdy build for lasting quality.

The adapter is designed to offer an inexpensive system that allows for the use of a vast range of lenses. All Canon EOS EF & EF-S lenses produce image circles large enough to cover the Micro 4/3 sensor (though their performance will only have been optimized for their native formats). This adapter system is particularly useful for mounting tilt/shift and other specialty lenses not available in the native Micro-4/3 format to the entire range of MFT cameras, providing for an inexpensive alternative for photographers and videographers alike.


Sometimes you need more than a simple adapter to mount a lens onto a camera - you need real power. Seize control over the electronic features of your lenses with a FUSION lens adapter. This adapter enables EXIF and aperture data to be transmitted to and controlled by the camera. Different lenses may exhibit different operating characteristics depending on lens age and manufacturer. We recommend testing individual lenses in your setup before critical shoots.

The EF-MFT Fusion Smart AF Lens Adapter is one of the first adapters in Fotodiox's Fusion line to include a micro USB port to allow for firmware updates providing a nearly future proof solution for MFT users by including new lenses and fixing possible bugs through firmware updates. For firmware updates and directions, please see the firmware update article for this adapter in the Fotodiox technical support knowledge base.


The FUSION technology built into the adapter enables electronic communication between mixed lens and camera platforms. FUSION adapters enable auto focus, aperture control, image stabilization, and more. Although the adapter will allow you to mount any Canon EF lens, not all lenses will perform the same. Lens firmware, focusing motors, and age of lens will all affect the speed, reliability and accuracy of the adapter.

Included on the adapter is a 'Iris Toggle' switch supports aperture control through the adapter. You can adjust the aperture from the adapter to directly control the lens actual aperture. (Need to cleanup and expand on this more).


Fotodiox Pro adapters are designed with precision tolerance that creates a solid, gap free, no play, no wiggle connection with no adjustments needed. Precision all-metal construction with chrome plated brass mounts for a secure and solid fit backed by our 24 month Fotodiox warranty.

Whether you're shooting digitally or on film, Fotodiox offers the world's largest selection of lens adapters. Mix camera/lens platforms or reinvigorate vintage glass; Fotodiox has hundreds of ways to mount lenses onto your DSLR or SLR camera. Our adapters deliver infinity focus, manual aperture control, and a sturdy build for lasting quality.

Lens Mount Canon EOS (EF & EF-S) D/SLR Lens
Body Mount Micro Four Thirds (MFT) Mirrorless Cameras
Product Dimensions 0.3 x 0.3 x 0.1 in (7.5 x 7 x 2.8 cm)
0.24 lb (3.8oz)
Shipping Dimensions 0.5 x 0.4 x 0.2 in (11.5 x 9.5 x 6 cm)
0.4 lb (6.3 oz)
Manufacturer Fotodiox Inc.
Warranty Limited 24-Months
  • • For firmware updates and directions, please see the firmware update article for this adapter in the Fotodiox technical support knowledge base.
  • • Autofocus may be disabled for older Canon lenses and some third-party lenses (Sigma, Tamron and Tokina lenses).
  • • Third party lenses like Sigma or Tamron lenses have more issues with auto focus.
  • • Auto Focus can be slow or even not function with varied model lenses and even different lenses of same model.
  • • Longer focal length lenses tend to have more issues with auto focus with the auto adapter.
  • • Not all Canon compatible lenses work equally well, dependant on: internal lens motors, firmware versions, lens age, etc
  • • Continuous AF and video AF are not supported as performance may be unsatisfactory.
  • • Switching between image and video can cause camera to freeze.
  • • Switching f-stops in video mode can cause white flashes in video.
  • • Certain video modes can cause the camera to freeze.
  • • All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.
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Customer Reviews (4.6 / 5 · 5 reviews)

John ★★★★★

The autofocus is snappy and accurate with my Canon 50mm f/1.8 on my Lumix G9—much better than I expected from an adapter. Being able to control the aperture electronically through the camera body makes this feel like a native lens setup.

Steven ★★★★★

I was a bit worried about compatibility, but the electronic communication between my Canon lenses and the Panasonic body works flawlessly. Even my older 50mm f/1.4 locks focus quickly and the aperture control is smooth. It's a huge relief not having to manually stop down.

Jason G. ★★★★★

AF has been snappy and reliable with my Sigma 17-50, and the full electronic control means I haven’t had to touch a single menu setting. The solid metal build gives me confidence it’ll last, though it’s a bit heavier than I expected for an adapter. Definitely worth it for keeping my Canon glass aliv