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Metabones EF to E-Mount T Speed Booster ULTRA 0.71x Lens Adapter MB_SPEF-E-BT2

Metabones EF to E-Mount T Speed Booster ULTRA 0.71x Lens Adapter MB_SPEF-E-BT2

Your Price: $649.00

Availability:

TMS SKU: MB_SPEF-E-BT2
Metabones Part Number: MB_SPEF-E-BT2

UPC:

4897050181874
The new Metabones EF to E Mount T lens adapter with Speed Booster Ultra features 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.

The Speed Booster ULTRA has a magnification of 0.71x; effectively reducing 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.

MB_SPEF-E-BT2 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 by Caldwell Photographic in the USA (patent pending).
  • 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.
  • Note: Metabones adapters are NOT licensed, approved or endorsed by Sony or Canon.

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