Metabones Nikon G Lens to Sony E-Mount Speed Booster ULTRA 0.71x

The Metabones Nikon G to E mount Speed Booster ULTRA has a magnification of 0.71x, and effectively reduces the crop factor of mirrorless cameras with DX-sized sensors from 1.5x to 1.07x. 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.

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 zoom lenses by 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 by Caldwell Photographic in the USA (patent pending)
• Industry's best aperture ring covers a 8-stop range markings, clearly indicating actual number of f-stops
• Compatible with both Nikkor G & F lens (include non-AI & AI lens mounts)
• The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo Clam ball heads

 

Please note:
1. Metabones is not licensed, approved or endorsed by Sony or Nikon.
2. This Speed Booster ULTRA is NOT fully compatible with full-frame Sony A7, A7R and A7S. When the Speed Booster® are used with Sony A7, A7R or A7S the camera is required to be used in the "APS-C Size Capture" mode