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Metabones Canon EF to EOS M T Speed Booster ULTRA 0.71x
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Or ask about:
| Type of Product | Adapters for lens |
| Type of Product | Other Accessories |
| Adapter is for cameras | Canon EOS M |
| Adapter is for lenses | Canon EF |
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Use your full-frame Canon EF lenses on Canon EF-M mount cameras with the Metabones T Speed Booster Ultra 0.71x Adapter, gaining a wider field of view and one-stop brighter aperture.
The Metabones T Speed Booster Ultra 0.71x Adapter allows Canon EF full-frame lenses to be mounted on Canon EF-M mount cameras while maintaining optical performance and supporting electronic functionality. By condensing the image circle of the full-frame lens to the APS-C sensor, the adapter effectively reduces the crop factor to 0.71x and provides a one-stop increase in lens aperture, maximizing light capture and field of view.
Constructed from aluminum alloy with brass mounting rings, the adapter is lightweight yet durable. Five optical elements in four groups are precisely engineered to maintain corner sharpness, minimize distortion, and reduce vignetting. The matte black interior prevents internal reflections for clean, high-contrast images.
This adapter also supports full electronic communication, allowing autofocus, image stabilization, in-camera aperture control, and EXIF metadata transfer when the attached lens supports these functions. A detachable Arca-type tripod foot with 1/4-20 threads reduces stress on the camera mount during use with heavier lenses.
Key Features
- Mount full-frame Canon EF lenses on Canon EF-M mount cameras
- 0.71x magnification for APS-C crop factor compensation
- One-stop increase in lens aperture for brighter exposure
- Full electronic communication for autofocus, IS, aperture control, and EXIF metadata transfer
- Five optical elements in four groups for sharpness and color fidelity
- Anti-reflective matte black interior minimizes internal flare
- Aluminum alloy body with brass mounting rings for durability and reduced weight
- Detachable Arca-type tripod foot with 1/4-20 threads
- Locking mechanism with push-button release for secure lens attachment
- 1 Metabones T Speed Booster Ultra 0.71x Adapter for Canon EF to EF-M
- Adapter Type T Speed Booster Ultra 0.71x
- Camera Compatibility Canon EF-M Mount
- Lens Compatibility Canon EF Mount
- Magnification 0.71x
- Exposure Change +1 Stop
- Optical Design 5 Elements in 4 Groups
- Electronic Communication Yes
- Materials Aluminum, Brass
- Tripod Mount 1/4-20 Female Thread
- Dimensions 2.8" (71.12 mm) diameter, 1.1" (27.94 mm) depth
- Weight 7.51 oz (213 g)
