Metabones Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera

Metabones Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera

Metabones Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera

B&H # MESPNFGM43B3 MFR # MB_SPNFG-M43-BM3
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Product Highlights

  • Nikon F Lens to Micro 4/3 Body
  • Full-Frame Lens to Micro 4/3 Camera Body
  • APS-C Lens to Micro 4/3 Body
  • 0.71x Micro 4/3 Crop Factor Compensation
  • 1-Stop Increase in Lens Apertures
  • 5 Optical Elements in 4 Groups
  • Locking Mechanism to Secure Lens
  • Push-Button Lens Release
  • Brass Mounting Rings
  • Detachable Tripod Foot
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Metabones MB_SPNFG-M43-BM3 overview

  • 1Description

The Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera from Metabones allows a full-frame or APS-C Nikon F-mount lens to be mounted onto a Micro Four Thirds-mount camera. While doing so, the adapter's optics help to maximize the connected lens's apparent angle of view while providing a 1-stop increase for the camera over the lens's aperture range.

If a lens intended for 35mm film or similarly sized full frame as well as APS-C camera sensors is connected to a camera with a Micro Four Thirds-sized sensor, it would project an image larger than the Micro Four Thirds sensor was built to accept. Able to capture only the center portion of the projected image, the effective angle of view of the lens would be narrowed, creating an in-camera "crop factor." The Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera condenses the light from a lens designed for APS-C as well as 35mm film, or "full frame" camera sensors and projects it onto a Micro Four Thirds sensor. This allows a Micro Four Thirds sensor to utilize more of the light gathered by a connected lens, which effectively reduces the crop factor while making available to the sensor an additional 1 stop of light for each of the lens's f/stop settings.

This adapter is constructed from aluminum alloy for durability while minimizing weight and its mounting rings are made with brass to further prevent wear-and-tear. Inside are five lens elements in four groups that are designed to provide optical clarity as well as color fidelity, and a detachable tripod foot is included that features 1/4"-20 threads as well as compatibility with Arca-Swiss tripod heads.

The Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera does not support electronic communication between an attached camera and lens. To help determine the amount of light that enters a Micro Four Thirds-mount camera when using this adapter and a Nikon F-mount lens, an aperture dial is built into the Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera. The aperture dial is designed to provide aperture control for Nikon G-type lenses, which do not have an aperture ring. Nikon AI or many post-Nikon AI lenses can have their aperture settings widened or narrowed using their built-in aperture control rings if preferred.

  • Allows a full-frame AI or post-AI as well as an APS-C Nikon-F mount lens to be used with a Micro Four Thirds-mount camera
  • Maximizes apparent angle of view of combined camera and lens
  • Provides a 1-stop increase for the camera over the lens's aperture range
  • Five lens elements in four groups for optical clarity as well as color fidelity
  • Detachable, Arca-Swiss compatible tripod foot with 3/8" threads
  • Aluminum alloy components for weight reduction
  • Brass mounting rings prevent wear-and-tear
  • Locking mechanism for secure attachment of lens with push-button release
In the Box
Metabones Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera
  • Front Cap
  • Rear Cap
  • Tripod Foot Key
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Metabones MB_SPNFG-M43-BM3 specs

    Adapter
    Camera Mount Micro Four Thirds
    Lens Mount Nikon F
    Magnification 0.71x
    Optical Design 5 Elements in 4 Groups
    Physical
    Dimensions : 2.6 x D: 0.9" / : 6.5 x D: 2.4 cm
    Weight 6.0 oz / 170.0 g
    Packaging Info
    Package Weight 0.75 lb
    Box Dimensions (LxWxH) 4.5 x 4.4 x 2.3"

    Metabones MB_SPNFG-M43-BM3 reviews

    Speed Booster Ultra 0.71x Adapter for Nikon G Lens to Micro Four Thirds-Mount Camera is rated 4.1 out of 5 by 7.
    Rated 5 out of 5 by from Adapted Nikon glass to GH5s This product works great. I wish it were able to provide autofocus, but the focal length 0.71x conversion and 1 f-stop increase is awesome! The aperture is kind of ambiguous because it ends up converting it to just a slider ring which is manually controlled on the adapter itself. I think for photo this isn't ideal (and with the lack or autofocus), but for video it is totally fine. The lenses I have with VR built in do provide VR it seems, but it isn't nearly as effective as the Lumix native glass with OIS. Overall a great product to have available in my kit of mostly Nikon lenses and GH5S body.
    Date published: 2018-02-16
    Rated 5 out of 5 by from Excellent Debated whether or not to go with a much cheaper brand and model but decided on this - and was not disappointed. Definitely superior to the others on the market in build and quality.
    Date published: 2016-12-13
    Rated 2 out of 5 by from Know This! Something you must know before purchasing this; if you are using electronic lenses, you will not be able to now what Fstop you are shooting at. For example, if you read on your handheld meter that you need to shoot at f3.6, you will not be able to translate that to the camera. The markings are F-7, and there is no guide, table, or reference sheet to translate that to any electronic lenses. I've spoken with EVERYONE, including Metabones directly and there is nothing that can be done... Long story short, think twice if you are trying to use this in a professional environment. If you don't mind going by eye, and don't care about accurate metering or consistency from shot to shot, then go for it. If there were an ACCURATE reference guide for what F-7 represented in stops, then I would have absolutely no qualms with this item. However, if you are using electonic, or G Series lenses, it's simply a no-go.
    Date published: 2015-09-02
    Rated 2 out of 5 by from Mid 2018 and still no electronic controls... Ok, first of all I know the lack of electronic controls isn't entirely Metabones fault. Nikon won't share, and for whatever reason Metabones hasn't been able to reverse engineer it. A few years ago this wasn't terrible because a lot of Nikon mount lenses had a little lever on the mount that at least let you control the aperture manually (though you still give up VR and AF). But now most lens manufacturers are going with fully electronic apertures on their new lenses (including Nikon), meaning that little lever in the lens mount is no longer there. This means you have absolutely NO aperture control whatsoever with most modern lenses, be it Nikon, Tamron, or Sigma. Your lens will be wide open all of the time, and as much as I like shooting wide open and a shallow DOF, that just isn't always the right choice depending on the job. This has really thrown my equipment plans into disarray, and unfortunately I think I'm going to have to return this adapter and buy different lenses. The quality of the adapter itself is very good - the build is good, the glass is good, the fit is good. But unless you are using older Nikon mount lenses, I would strongly recommend against buying this adapter. You are giving up too much functionality with most modern lenses (no VR, no AF, and no aperture control).
    Date published: 2018-07-20
    Rated 5 out of 5 by from Pricey, but 100% reliable I've used the original Nikon to MFT Speed Booster for years, and so when getting a second Panasonic GHx camera this was a no-brainer. I personally prefer to mount Nikon lenses, as the smooth manual aperture control is something I've fallen completely in love with. It's more like working with classic old cinema cameras. So if you happen to be starting from scratch, save some money and get this instead if the Canon version.
    Date published: 2018-05-07
    Rated 5 out of 5 by from Great tool if you have Nikon glass Used this with a Nikon 50mm F1.8 and Lumix GX85. Shot some video and photos. Manual focusing wasn't an issue. The focus highlighting helped a lot. Great bokeh and very sharp. Will try this with other lenses in the coming weeks. Very well built.
    Date published: 2017-11-30
    Rated 5 out of 5 by from Opperates as it's suppsed to. Very well built. Does exactly what it says it will. Great build quality. Price is pretty high for what it is though.
    Date published: 2017-11-06
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