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Vello Accelerator Lens Adapter for Canon EF-Mount Lenses to Micro Four Thirds Mount Cameras

BH #VELAGMFTCEF • MFR #LAG-MFT-CEF
Vello
Vello Accelerator Lens Adapter for Canon EF-Mount Lenses to Micro Four Thirds Mount Cameras
Key Features
  • Full-Frame EF Lens to Micro 4/3 Camera
  • Micro 4/3 Crop Factor Compensation
  • 1-Stop Increase for Lens Apertures
  • Maintains AF, Aperture Function, and IS
This Accelerator Lens Adapter for Canon EF-Mount Lenses to Micro Four Thirds Mount Cameras from Vello allows a full-frame Canon EF-mount lens to be used on a Micro Four Thirds mount camera. The adapter's optics help to maximize the connected lens's angle of view while providing a one-stop increase for the camera over the lens's aperture range. When used with a Panasonic Micro Four Thirds mount camera or camcorder, this adapter's integrated, aperture toggle dial provides clickless stop adjustments that help prevent unwanted noise or vibrations from being recorded while capturing video with sound. The adapter maintains full electronic connectivity between camera and lens to support all electronic functions.
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Vello LAG-MFT-CEF Overview

This Accelerator Lens Adapter for Canon EF-Mount Lenses to Micro Four Thirds Mount Cameras from Vello allows a full-frame Canon EF-mount lens to be used on a Micro Four Thirds mount camera. The adapter's optics help to maximize the connected lens's angle of view while providing a one-stop increase for the camera over the lens's aperture range. When used with a Panasonic Micro Four Thirds mount camera or camcorder, this adapter's integrated, aperture toggle dial provides clickless stop adjustments that help prevent unwanted noise or vibrations from being recorded while capturing video with sound. The adapter maintains full electronic connectivity between camera and lens to support all electronic functions.

A full-frame Canon EF lens is designed to project an image that is larger than a Micro Four Thirds camera's sensor. Ordinarily, that sensor would only be able capture the center portion of the projected image, creating an in-camera "crop factor." Inside this adapter, four optical elements in four groups condenses the light from the full-frame lens and effectively reduces the crop factor. This also makes available to the sensor an additional one stop of light throughout the lenses aperture range.

Constructed from aluminum alloy, this adapter is durable while remaining lightweight, while an internal, matte black coating minimizes the appearance of reflections within the adapter barrel. To help reduce stress on the camera mount when placed on a tripod, the adapter includes a detachable Arca-type compatible tripod foot with 1/4"-20 threads.

  • Allows full-frame Canon EF-mount lenses to be used on a Micro Four Thirds mount camera
  • Maintains full connectivity for all electronic functions
  • Enables AF, auto exposure, and image stabilization
  • Integrated toggle dial for clickless aperture adjustments when used with a compatible Panasonic camera or camcorder
  • 0.71x magnification maximizes 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
  • Internal, black matte coating minimizes the appearance of reflections within the adapter barrel
  • Detachable Arca-type compatible tripod foot with 1/4"-20 threads can be used to reduces stress on a connected camera's mount
  • Lightweight and durable metal construction
  • Has a built-in micro-USB Type-B port for firmware updates
UPC: 847628008694

Vello LAG-MFT-CEF Specs

Adapter
Camera MountMicro Four Thirds
Lens MountCanon EF
Magnification0.71x
Optical Design4 Elements in 4 Groups
Physical
MaterialMetal
Tripod Mounting Thread1/4"-20 Female
DimensionsH: 3.0 x W: 2.8 x D: 0.9" / H: 75.0 x W: 71.0 x D: 24.0 mm
Weight4.20 oz / 119.0 g
Packaging Info
Package Weight0.705 lb
Box Dimensions (LxWxH)4.35 x 4.05 x 2.4"

Vello LAG-MFT-CEF Reviews

Like a Metabones Speedbooster

By Christopher
Rated 5 out of 5
Date: 2022-06-01

As far as I can tell, the optics are nearly the same as my Metabones Speedbooster of the same Micro 4/3 to EF. So far so good!

Vello follow up

By Bill
Rated 5 out of 5
Date: 2022-04-19

Vello replaced the adaptor I reviewed earlier with a new one. Great warrantee service.

Very slow focusing

By Jeffrey
Rated 1 out of 5
Date: 2022-05-31

I am returning this item because it didn't work as it should have.

Limited usefulness

By James K
Rated 3 out of 5
Date: 2022-05-19

Solid and well made, however, longer Canon zooms such as the 70-300 constantly focus-hunt when used with this adapter. Shorter focal length zooms are better, however, the best option is to focus manually. Sharpness is also an issue, with L glass ending up looking noticeably soft. On the plus side, gaining an f-stop of brightness is a nice benefit.

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Will this adapter work with an Olympus OM-D EM-1 ...

Will this adapter work with an Olympus OM-D EM-1 mk2 and have all of the auto functions work, just like on a Canon body?
Asked by: John
Yes -This adapter is designed to be compatible with the OMD-EM1 mk2
Answered by: robert
Date published: 2022-01-10

Can you explain why this would not work with all ...

Can you explain why this would not work with all Canon EF-Mount compatible lenses? I have the Sigma 24-70 1:2.8 DG HSM lens for example. It is not listed in Vello's compatibility chart, though other Sigmas are.
Asked by: Soctt
The S in EF-S stands for short. The rear optic protrudes out of the back of the lens puting it closer to the focal point / sensor of a Canon APS-C sensor. This protrusion is what will stop an EF-S lens from attaching to this adapter.
Answered by: Patrick
Date published: 2021-06-27

Is this a speed booster or just a lens mount ...

Is this a speed booster or just a lens mount adapter?
Asked by: Kyle
It is a speed booster type adapter, just that speed booster is a name used by Metabones. Vello calls it accelerator.
Answered by: Daniel
Date published: 2021-11-04
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