Metabones Speed Booster Ultra - Nikon G to Fujifilm X

Name: Metabones Speed Booster Ultra - Nikon G to Fujifilm X
Brand: Metabones
SKU: dxlqgvwsgh
Price: 469.00 GBP
Availability: InStock

The Metabones Speed Booster Ultra allows a Nikon AF-G F-mount DSLR lens to be mounted onto a Fujif...

Best current price£469.00from Wex Photo Video

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Metabones Nikon G to Fuji X Speed Booster Ultra MB_SPNFG-X-BM2 0.71x Mount Adapter

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Wex Photo VideoMetabones Nikon G to Fuji X Speed Booster Ultra MB_SPNFG-X-BM2 0.71x Mount Adapter

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Product Information

Full details

The Metabones Speed Booster Ultra is designed for photographers and videographers who want to use their existing Nikon AF-G F-mount lenses on Fujifilm X-mount mirrorless cameras while maintaining high optical fidelity. By utilizing an advanced 5-element optical design, it effectively reduces the crop factor from 1.5x to 1.07x, providing a wider field of view and an extra stop of light; however, users should be aware that it is not compatible with all legacy glass, such as the Nikkor 2.1cm f4.

All features

Brand	Metabones

Extended Product Information

FAQs

Does this work with manual focus Nikon lenses?

Yes, it is compatible with both Nikkor G lenses and older F-mount lenses, including non-AI and AI manual focus lenses.

Will I lose autofocus capability?

This specific model is primarily designed for manual control of the aperture; please check your specific lens compatibility for autofocus performance.

Can I remove the tripod foot?

Yes, the tripod foot is detachable to allow for a lower profile when shooting handheld.

What does the 0.71x factor mean for my lens?

It means your lens becomes 0.71x wider and gains one stop of light, effectively turning your APS-C sensor camera into a 1.07x crop sensor system.

Is it compatible with all Nikkor lenses?

No, it is not compatible with all lenses. Specifically, the Nikkor 2.1cm f4 is incompatible with this adapter.

Troubleshooting

Lens aperture does not seem to change

Ensure the lens is fully locked into the mount and the aperture ring on the adapter is turned to the correct setting.

Soft images in corners

Check that both the camera and lens mounts are clean and debris-free, ensuring the adapter is seated perfectly flat.

Adapter feels loose on the camera mount

Check the mounting pins on the camera and adapter for any obstructions; if the fit remains loose, inspect the lens mount for wear.

Pros and Cons

Pros

Increases lens maximum aperture by one full stop
Significantly reduces crop factor to nearly full-frame equivalent
High-quality optical glass improves corner sharpness
Integrated aperture ring allows for manual control on G-series lenses
Robust, professional-grade brass and chrome construction

Cons

Not compatible with all Nikon F-mount lenses, specifically the Nikkor 2.1cm f4
Adds weight and length to the camera lens configuration
Optical elements require careful cleaning to avoid smudges or scratches

Setup, Compatibility & Care

To install the adapter, align the white dot on the Metabones unit with the index mark on your Fujifilm X-mount camera body and rotate until it clicks. Attach your Nikon G or F-mount lens using the same process on the front of the adapter. Ensure the aperture ring on the adapter is set to the desired position to control the lens iris. For care, always keep the front and rear elements clean by using a high-quality lens blower and microfiber cloth. Store the adapter in a dry, dust-free environment when not in use to prevent fungal growth on the precision optical elements.