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The Metabones T Speed Booster XL 0.64x Adapter mounts Canon EF full frame lenses onto some Micro Four Thirds (MFT) mount cameras. Boosting the field of view by 0.64x, the Adapter also increases the maximum aperture by 1.3 stops for brighter photos with less cropping. With its lightweight aluminium alloy frame, brass mounting rings, and six lens elements, the adapter is both durable and built to deliver sharp images. It also features a detachable tripod foot with 3/8-inch thread so you can use it to mount heavier lenses directly onto a wide range of tripods.

Mount Full Frame Lenses on MFT Cameras

The Metabones T Speed Booster Adapter widens the angle of view of both the Canon Full Frame EF lenses and compatible MFT cameras by 0.64x. By reducing the crop factor from 2.0x to 1.28x, the adapter effectively allows you to shoot in APS-H format to achieve wider photos and videos.

Aperture Increase of 1 1/3 stop

Utilising the lens’ full frame capabilities, the adapter condenses the excess light and projects it onto the body’s sensor to offer an additional 1.3 stops of aperture across the entire range. Thanks to the wider aperture, you can shoot in shallower depth of field for beautiful portraits.

Supports Electronic Communication and EXIF Metadata

Communication between the camera and lens is enabled by the T Speed Booster XL Adapter. Most available camera and lens features such as in-body image stabilisation, aperture and autofocus are supported and controllable on-camera, making it easy to take smooth videos and crisp long exposure photos. The Metabones adapter also supports EXIF metadata when mounting a lens capable of generating it, making it easy to file and organise your data.

Six Element Optical Design

The adapter’s optical design is comprised of six elements in four groups to deliver sharp image quality and good colour fidelity.

Secure Lock and Aperture Dial

The Metabones T Speed Booster XL Adapter features a jog dial that lets you adjust the aperture incrementally. This is especially handy to quickly access the widest aperture settings on compatible cameras. The adapter also has a locking mechanism that securely snaps your Canon EF Lens to your MFT body while its push button release offers quick installation and removal to reduce set up time.

Sturdy and Lightweight

The Metabones Full-Frame Canon EF Mount to MFT Cameras T Speed Booster XL 0.64x Adapter is housed in an aluminium alloy casing that is both heavy-duty and lightweight. It also features chromium plated brass rings to protect against wear and tear. The barrel’s matte black coating and felt flocking on the openings reduce the chances of internal reflections to produce images without unwanted flare. The detachable tripod foot has 3/8-inch threads, making it compatible with a variety of tripod heads so you can mount heavy telephoto lenses without putting strain on your camera.



Crop Factor for Full Micro Four Thirds format


Crop Factor with GH4 in Cinema 4k (4096 x 2160) Video Mode


Maximum Output Aperture

f/0.80 (with f/1.2 lens attached)

Rectilinear Distortion

< 0.8%

Lens Elements/Group


Length Reduction

6.2 mm

Camera Mount

Micro Four Thirds

Image Format

17.3 mm x 13.0 mm (full Micro Four Thirds format)

Compatible Camera Bodies


Cinema Camera
Pocket Cinema Camera
Micro Cinema Camera (HD)
Micro Studio Camera (4K)





GH3, GH4, GH5

G3, G5, G6, G7, G10

GF3, GF5, GF6, GF7,

GX1, GX7, GX8, GX80/85


Note that the below cameras actually do function, but there is a minor interference with the protective shutter cover.
Although slight contact with the shutter cover appears to have no effect on the functioning or cosmetics of either the camera or the Speed Booster we cannot support these combinations due to possible risk of damage.



Olympus: E-M5, E-M1, E-M10, E-M5mkII, E-M1mkII, E-P1, E-P2, E-P3, E-P5, E-PL1, E-PL2, E-PL3, E-PL5, E-PL6, E-PM1, E-PM2

Panasonic: AF100, GH1, GH2, G1, G2, GF1, GF2, GF8, GF800/850/9, GM1, GM5

* Specifications subject to change by the manufacturer without notice
Metabones T Speed Booster XL 0.64x Adapter - Canon EF-Micro 4/3


* Dispatch timeframes are indications only and may vary for multiple quantities. Timeframes are updated regularly during normal business hours.