The Metabones TSpeed Booster Ultra is an adaptor that allows you to use your Canon EF mount glass with your Black Magic Pocket Cinema Camera 4K. With a 0.71x magnification it reduces the crop factor from 2x to 1.4x so you can make the most of your full frame lenses. The speed booster function also increases the maximum aperture of your lens by 1-stop and has an optical construction of 6 elements in 4 groups to ensure image quality is maintained.

Adapter for Canon EF to Black Magic Pocket Cinema Camera 4K

With the Metabones T Speed Booster Ultra 0.71x Adapter, Canon EF lenses can be attached to the BMPCC4K camera with its Micro 4/3 size sensor and mount. It reduces the crop factor from 2.0x to 1.43x to capture up to a 0.71x wider field of view.

One Stop Aperture Increase

The adapter condenses light and projects the image circle onto the Micro Four Thirds size sensor of the BMPCC4K, providing a 1 stop aperture boost. It also increases wide angle capabilities of your lens, providing better framing options.

Supports Electronic Communication

The Metabones T Speed Booster lens adapter supports communication between your camera and attached lense. Thanks to this interface, settings like aperture can be changed from the camera rather than having to be manually controlled on the lens. This also allows the camera to record EXIF data in the meta data of your image file.

Supports Autofocus, Manual Focus and IS

The Metabones 0.71x T Speed Booster provides the option of using either manual or autofocus when using an autofocus enabled lens. Lens image stabilisation is also supported so you don’t have to sacrifice function for convenience.

Optical Construction of 6 Elements in 4 Groups

The T Speed Booster Adapter uses a sophisticated optics made up on 6 elements arranged with a 4-group design. Inside the adaptor there is a flocking to reduce internal reflections for clearer image results

Professional Build Quality

The robust build of the Metabones 0.71x Ultra Speed Booster ensures it stands up to daily use while at the same time keeping the adaptor lightweight. It is constructed from a combination of aluminium alloy and brass with chromium plating and has as a rubber gasket at the mount to protect against dust and moisture.

Additional Features

The Canon EF to BMPCC4K Metabones T Speed Booster Ultra 0.71x Adapter has a detachable tripod foot that is compatible with Arca-Swiss compatible tripods. The foot also has a 1/4-inch socket that allows it to be mounted to quick release plates and it is made to match the height of the BMPCC4K camera.

Note: Designed for the BMPCC4K and not compatible with other Micro Four-Thirds cameras.


Canon EF-mount lens to Black Magic Pocket Cinema Camera 4K

Crop Factor



4 Groups / 6 Elements


Canon EF-mount lens to Black Magic Pocket Cinema Camera 4K

Camera Body Compatibility List

BlackMagic Pocket Cinema Camera 4K


BlackMagic Pocket Cinema Camera HD (original ver.)


BlackMagic Micro Cinema Camera 


BlackMagic Micro Studio Camera 4K 


BlackMagic Studio Camera 4K 


BlackMagic Studio Camera


* Specifications subject to change by the manufacturer without notice

Metabones T Speed Booster Ultra 0.71x Canon EF to BMPCC4K Adaptor


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