Metabones Canon EF to Emount T Speed Booster ULTRA 0.71x

Metabones Canon EF to Emount T Speed Booster ULTRA 0.71x (Black Matt)

Scan code: LN78442 Manufacturer code: MB_SPEF-E-BT2 Request call
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Product Overview Speed Booster ULTRA for E-Mount and X-mount cameras

Sharper corners, less distortion, reduced vignetting

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

Like the revolutionary original Metabones Speed Booster announced in January 2013, 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. Features • Increase maximum aperture by 1 stop.
• Increase MTF.
• 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 late-model (post-2006) Canon-brand lenses.
• Powered by camera body. No external power source required.
• High performance 32-bit processor and efficient switched-mode power supply.
• The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads.
• Flocking material coating inside the inner hole to reduce the internal reflection.

• Magnification Factor - 0.71x
• Max Aperture Increase - 1 stop
• Camera Fitting - Sony E Mount T
• Lens Fitting - Canon EF

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
28 days
RTB Period:
12 months
Manufacturer Contact Details
Scan Computers International Limited
Questions & Answers
Metabones Canon EF to Emount T Speed Booster ULTRA 0.71x
Metabones Canon EF to Emount T Speed Booster ULTRA 0.71x