Metabones T Speed Booster Ultra Adapter MB-126 Canon EF to Sony E-Mount

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The Metabones T Speed Booster Ultra Adapter MB-126 Canon EF to Sony E-Mount allows a Canon EF lens to be mounted to a Sony E-Mount camera, and in doing so increases the angle of view and increases the maximum aperture 1 f/stop.

New optical design: advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass to achieve extraordinary optical performance with improved corner sharpness, distortion and reduced vignetting.

Like the revolutionary original Metabones Speed Booster, the Speed Booster ULTRA has a magnification of 0.71x, and so it effectively reduces the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x. However, the new ULTRA design makes very effective use of exotic materials at the furthest limit of glassmaking technology, and as a result is well corrected for use with virtually all fullframe SLR lenses regardless of exit pupil distance. Thus, the Speed Booster ULTRA performs extremely well with professional-grade f/2.8 zoom lenses such as the 24-70mm f/2.8 and 70-200mm f/2.8 zooms by Canon and Nikon to produce 17-50mm f/2.0 and 50-142mm f/2.0 high-speed zooms, respectively. Similarly, high-speed fixed focal length lenses such as a 50mm f/1.2 will be transformed into a 35.5mm f/0.9 lens with excellent contrast and resolution from the center all the way to the edges of the image.

  • Increase maximum aperture by 1 f/stop
  • Makes lens 0.71x wider
  • Advanced 5-element/4-group optical design incorporating ultra-high index tanatalum-based optical glass
  • Electronic integration of aperture diaphragm, controlled by or from the camera body
  • Partial autofocus support for some late-model Canon-brand lenses (please see below. For specific information please refer to the Metabones website)
  • High performance 32-bit processor and efficient switched-mode power supply
  • Both camera-side and lens-side of the adapter are made of brass, precision-machined and plated with chromium
  • Flocking material coating inside the inner hole to reduce the internal reflection
  • The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo cam ball heads

Note: Partial auto focus function is supported with known limitations, for some late-model Canon-brand lenses. For specific information please refer to the Metabones website. For further information on lens-body compatibilities and functions please refer to the Metabones website.

Specifications

Lens Mount Canon EF
For further information on lens-body compatibilities and functions please refer to the Metabones website.
Body Mount Sony E-Mount
For further information on lens-body compatibilities and functions please refer to the Metabones website.