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Metabones

Metabones Nikon G Lens to Sony NEX Speed Booster

SKU: MBNFEMSB MFR: MB_SPNFG-E-BM1
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Our Price

$429.00 $17 per week
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About this item

Metabones Speed Booster mounts between a mirrorless camera and a SLR lens. It increases maximum aperture by 1 stop (hence its name), increases MTF and has a focal length multiplier of 0.71x. For example, the Canon EF 85mm f/1.2L II lens becomes a 59mm f/0.9 lens on a Sony NEX camera, with increased sharpness. The faster F-stop allows for shallow depth-of-field and a lower ISO setting for decreased noise.

Speed Booster is also particularly pertinent to ultra-wide-angle SLR lenses. The combined focal length multiplier of Speed Booster and an APS-C mirrorless camera is approximately 1.09x, making the combination almost "full-frame". Full-frame ultra-wide-angle SLR lenses largely retain their angle-of-view on an APS-C mirrorless camera when Speed Booster is used.

The optics of Speed Booster is designed by Brian Caldwell, PhD, a veteran of highly-corrected lens designs such as the Coastal Optics 60mm f/4 UV-VIS-IR APO Macro lens with exemplary MTF performance (focusing done with visible light requires no correction whatsoever for the full spectrum from UV to IR).

Remark:
This mount is manual aperture control. It does NOT support electronic aperture control.

List of incompatible lenses
Nikkor 2.1cm f4
20/2.8 AI-S

Key Features

  • Industry's best aperture ring covers a 8-stop range with half-stop markings, clearly indicating actual number of f-stops. No more guesswork!
  • Compatible to both Nikkor G lens & F lens (include non-AI & AI lens mounts).
  • Increase maximum aperture by 1 stop
  • Increase MTF
  • Makes lens 0.71x wide
  • The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo camball heads.
  • Both camera-side and lens-side of the adapter are made of brass, precision-machined and plated with chromium
  • Satin surface finish - just like your OEM lens and camera mounts
  • Precise fit and solid connection - lens has no play, gap or wiggling when mounted on adapter and no adjustments are required to fit your lens
  • Designed to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements

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