Metabones Contax Yashica to X-mount Speed Booster ULTRA 0.71x
Metabones Contax Yashica to X-mount Speed Booster ULTRA 0.71x

Metabones Contax Yashica to X-mount Speed Booster ULTRA 0.71x

  • 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)
  • The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads
 
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Product Details

Sharper corners, less distortion, reduced vignetting. 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 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 Show More

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  • Metabones Contax Yashica to X-mount Speed Booster ULTRA 0.71x
 
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