Metabones Nikon F-Mount G Lens to Fujifilm X-Mount Camera Speed Booster ULTRA

Metabones Nikon F-Mount G Lens to Fujifilm X-Mount Camera Speed Booster ULTRA

Metabones Nikon F-Mount G Lens to Fujifilm X-Mount Camera Speed Booster ULTRA

B&H # MESPNFGXBM2 MFR # MB_SPNFG-X-BM2
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Product Highlights

  • Nikon F-Mount G Lens to Fujifilm X-Mount
  • Ultra-High Index Tantalum-Based Glass
  • Increases Maximum Aperture by 1 f/Stop
  • Increases Angle of View by 0.71x
  • Long-Throw Clickless Aperture Ring
  • Compatible with Nikon G Lenses
  • Infinity Focus Adjustment
  • Detachable Tripod Foot
  • Black Matte Interior; Black Exterior
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Lens Mount: Nikon F-Mount G

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Metabones MB_SPNFG-X-BM2 overview

  • 1Description

The Nikon F-Mount G Lens to Fujifilm X-Mount Camera Speed Booster ULTRA from Metabones improves upon the original Metabones Speed Booster with a 5 element/4 group optical design that incorporates ultra-high refractive index tantalum-based glass for improved sharpness and reduced distortion and vignetting. The Speed Booster ULTRA allows a full frame Nikon F-Mount G lens to be mounted to an APS-C format X-Mount camera and in doing so, increases the angle of view and increases the maximum aperture by approximately one f/stop. It is compatible with NIKKOR F mount and F Mount G lenses including AI and non-AI mounts.

When a lens intended for full frame sensors or 35mm film is mounted to a camera with an APS-C sized sensor, it transmits a larger area of light than the smaller sensor was built to accept and therefore the effective angle of view of the lens increases. The Speed Booster condenses light from the lens and projects it onto the APS-C sensor allowing the sensor to utilize all of the lens' light and effectively reduces the crop factor of and APS-C E-Mount camera from 1.5x to 1.07x, producing a full-frame angle of view with an APS-C sensor. A corresponding increase in the maximum aperture of one f/stop makes the lens more effective in low-light situations and able to create a shallow depth of field. 

Although the lens will fit physically, automatic diaphragm (AE metering), or other auto functions are not retained using this speed booster. A built-in clickless aperture control ring enables manual control of aperture from the speed booster. This 8-stop ring with clearly marked 1/2-stop markings is shipped as clickless. Metabones Speed Boosters are quality made, using precision-machined brass with chromium plating on both the camera body and the lens side of the booster in order to ensure smooth mounting, quality aesthetic, and durability. A matte black interior reduces internal reflections and a black satin finish external surface matches with most camera bodies and lenses. This adapter has a tripod foot that is compatible with Arca Swiss, Markins, and Photo Clam ball heads, and can be removed if needed with an included hex key.

Allows a full frame Nikon F-Mount G lens to be mounted to an Fujifilm X-mount APS-C format camera and in doing so, increases the angle of view and increases the maximum aperture by one f/stop.
The Speed Booster ULTRA design incorporates ultra-high index tantalum-based optical glass for enhanced optical performance with improved corner sharpness and reduced distortion and vignetting. This glass technology and optical design perform extremely well with professional-grade f/2.8 zoom lenses and high-speed fixed focal length lenses such as a 50mm f/1.2 which will perform as a 35.5mm f/0.9 lens with high contrast and resolution from the center to the edges of the image.
Precise fit and solid connection - lens has no play, gap or wiggling when mounted on speed booster and no adjustments are required to fit your lens. Both the camera-side and the lens-side of the speed booster are made of brass which is precision-machined and chrome-plated.
The Speed Booster uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens. The exterior features a black satin surface finish.
A built-in clickless aperture control ring enables manual control of aperture from the speed booster. This 8-stop ring with clearly marked 1/2-stop markings is shipped as clickless.
The speed booster is compatible with NIKKOR F mount and F Mount G lenses including AI and non-AI mounts.
Designed to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements.
The speed booster features a detachable tripod foot which is compatible with Arca Swiss, Markins, Photo Clam ball heads.
Although the lens will fit physically, automatic diaphragm (AE metering), or other auto functions are not retained using this speed booster.
Two hex keys included with the product, one to detach the tripod foot and another to tighten a mounting screw
In the Box
Metabones Nikon F-Mount G Lens to Fujifilm X-Mount Camera Speed Booster ULTRA
  • Front Cap
  • Rear Cap
  • Detachable Tripod Foot
  • 2 x Hex Keys
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Metabones MB_SPNFG-X-BM2 specs

    Adapterxducruefvxwayzwaqetdscvarrfvdyaueus
    Camera Mount Fujifilm X
    Lens Mount Nikon F
    Magnification 0.71x
    Optical Design 5 Elements in 4 Groups
    Physical
    Weight 6.8 oz / 193 g
    Packaging Info
    Package Weight 0.75 lb
    Box Dimensions (LxWxH) 4.3 x 4.3 x 2.4"

    Metabones MB_SPNFG-X-BM2 reviews

    Nikon F-Mount G Lens to Fujifilm X-Mount Camera Speed Booster ULTRA is rated 4.5 out of 5 by 6.
    Rated 5 out of 5 by from Compelling Noctilux Solution This well build adapter bring a lot to the table. Using the Speed Booster, I was able to convert my Nikkor Noct 58mm f/1.2 to a 41mm f/.84 for use on the Fuji X-Pro1. That's right...f/.84. With Fuji's X-Pro 1 focus peaking, manual focus is really straight forward and much easier than shooting with Nikon's current camera line. Metabones has given me a lot of more lens options! This adapter is well built and fits tightly and securely with both the camera and lenses.
    Date published: 2015-03-08
    Rated 3 out of 5 by from Good in theory I bought this to use my old Nikon prime F-mount AI and AI-S lenses to my X-T1. Unfortunately fewer than 1/2 my lenses would mount to the adapter and those that did could not focus out to infinity. Some could only focus out about 50 feet. There is some pretty serious blurring at the corners in wider apertures. I've found a simple glass-less adapter to give sharper results, but then there is the crop factor. Maybe it works better with newer lenses? As always, BH handled the return excellently!
    Date published: 2015-08-03
    Rated 5 out of 5 by from Filling a niche Purchased to use a tilt shift lens on a Fuji XT1. Precise fit , optically excellent, and free of unwanted reflections. Not inexpensive but a professional grade piece of equipment.
    Date published: 2015-07-08
    Rated 5 out of 5 by from It works on all Nikon mount lenses that I have tried I couldn't initially get it to work on a new Fuji X-T2. In setup I had to select to shoot with NO LENS. I've mounted several lenses including the Nikon DX Fisheye, various zooms and manual focus lenses including an 85mm f1.4. I am very pleased with the adapter. Aperture control works as expected.
    Date published: 2016-12-12
    Rated 5 out of 5 by from Works great. Does what it's supposed to do. Good fit.
    Date published: 2015-02-13
    Rated 4 out of 5 by from Very efficient Usefull item for Nikon lens
    Date published: 2015-03-30
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