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Metabones T Speed Booster Ultra 0.71x Adapter for Canon Full-Frame EF-Mount Lens to Canon EF-M Mount Camera
Key Features
- Canon EF Lens to Canon EF-M Body
- Full-Frame Lens to EF-M Camera Body
- 0.71x APS-C Crop Factor Compensation
- 1-Stop Increase in Lens Apertures
This T Speed Booster Ultra 0.71x Adapter from Metabones allows a full-frame Canon EF-mount lens to be used on a Canon EF-M mount camera. The adapter's optics help to maximize the connected lens's apparent angle of view while providing a one-stop increase for the camera over the lens's aperture range.
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I will buy the new canon m6 mark ll. will this ...
I will buy the new canon m6 mark ll. will this work on it? Will I geht more focal, aperture and wider view? Thanks
a 50mm f1.8 would look like a 57mm lens with an f1.2 aperture.
Date published: 2021-06-08
If i have eva1 and I want to mount 16-35 2.8 ...
If i have eva1 and I want to mount 16-35 2.8 canon ef on it, it will work and help reduce the focal ? now 16mm look like 24mm and I want it to be\look wider
All these staff answers have inaccurate math.
With a speedbooster adaptor providing a .71 crop factor, math is as follows:
16mm X .71 =11.36mm and f2.8 X .71=1.988. I am able to dial down to f2, visible on the viewscreen of my canon M6 mk2, with an f2.8 lens and this adaptor. 35mm X.71=24.85mm etc.
Date published: 2020-09-01
If I have a f/1.4 lens, will it become an f/1.1 ...
If I have a f/1.4 lens, will it become an f/1.1 or f/1.0 lens with this adapter? Also, will this adapter allow for EF and Ef-S lenses to now be used, like the Canon EF 50mm f/1.8 STM Lens, and will no longer
need a Canon EF-EOS M Adapter or Vello Canon EF-EOS M Adapter for the Canon M6 MKII?
Moreover, is there a 0.64 equvelant of this speedbooster that is compatible with the Canon M6 MKII?
Thanks!
The adapter only allows EF lenses, and there is no .64 adapter currently available.
As far as your aperture question, aperture is also affected by crop factor thus a f/1.8 lens would be a f/2.28 equivalent on an APS-C, and if you use this adapter you'll reclaim that light that is no longer falling the sensor so, roughly it'll be a f/2.0 equivalent.
Basically, (Aperture x 0.71) x Crop Factor.
Date published: 2021-12-20
Is the foot detachable?
Is the foot detachable?
Yes, there are two set screws that when removed will allow you to remove the foot print.
Date published: 2022-12-06
Dan, In your response to Muhammed you said "a ...
Dan, In your response to Muhammed you said "a 50mm f1.8 would look like a 57mm lens with an f1.4 aperture." You said it has a crop of 0.71 so don't you mean it would look like a "35mm" lens with an f1.4 aperture? Was "57mm" correct?
50mm f1.8 would look like a 57mm f1.2
Date published: 2021-06-08
Will this work on a BlackMagic Cinema Camera 2.5 ...
Will this work on a BlackMagic Cinema Camera 2.5 EF?
It will not. This is an EF to EF-M adapter, with EF-M being a different kind of lens mount. There is no speedbooster available for cameras that already have an EF mount.
Date published: 2022-05-01
Can I use this Metabones in my BMPCC 6K EF to ...
Can I use this Metabones in my BMPCC 6K EF to eliminate the crop factor with my EF Lenses?
This will not work as it is made for EF-M mount cameras like the EOS M6 or EOS M50. The BMPCC 6K is an EF/EF-S mount camera.
Date published: 2022-05-01
Can anyone confirm if this adapter works with the ...
Can anyone confirm if this adapter works with the Canon 85mm L 1.4 IS? I have the Viltrox Speedbooster and it’s not compatible and the IS and AF go crazy on that mount. I’m using an M6 MK II for reference.
Yes, it is compatible with the 85mm 1.4L.
Date published: 2026-04-18