The Professional's Source Since 1973
  • Help
Ask Our Experts800.606.6969
Hello, Log InAccount & Orders

Join Bild Expo 2025 - Presented by B&H

Video Chat with a Photography Expert - Live

Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x (Fifth Generation)

BH #MEMBSPEFEBT4 • MFR #MB_SPEF-E-BT4
Print
Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x (Fifth Generation)
Key Features
  • Canon EF Lens to Sony E-Mount Body
  • Increases Angle of View by 0.71x
  • Increases Maximum Aperture by 1 Stop
  • Switch for In-Body Image Stabilization
Realize the full potential of your full-frame Canon EF-Mount glass on your APS-C and Super35 format Sony E-Mount cameras with this Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x. Utilizing advanced optics, this adapter will increase the apparent angle of view of your full-frame lens by 0.71x, effectively combating the crop factor of an APS-C camera. This also increases the apparent sharpness of your image while also increasing the maximum aperture by 1 stop, making your full-frame lens look as if it were mounted on a full-frame camera.
More Details
In Stock
Free Expedited Shipping
Protect Your Gear
Add a protection plan from $95.99
Ask an Expert
800.606.6969
See any errors on this page?

question

For the Sony a6500, what is the exact crop factor after using this sped booster? Id like to know exact (or close approximations) in reference to 35mm, so I can purchase lenses accordingly.
Asked by: Garrett E.
The resulting crop factor is 0.89. To make things easier as you go forward in your photography, forget crop factor and just know the mm for wide, medium and tele for each sensor size you are using. The Sony a6500 has a APS-C sized sensor so for it: 18mm=wide, 32mm=medium, 65mm tele. Think this way and you will not have to calculate the FOV (Field Of View) of a sensor you are not using.
Answered by: Dennis A L.
Date published: 2018-08-27

Does this work with FX9 I own Canon EF L lenses

Does this work with FX9 I own Canon EF L lenses
Asked by: Felix
Yes. Keep in mind that you will suffer from a Increases Angle of View by 0.71x
Answered by: hectorm
Date published: 2021-12-12

Will it support EF-S lenses?

Will it support EF-S lenses?
Asked by: OLEKSANDR
No, the Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x (Fifth Generation) like most adapter boosters are for full frame lenses EF not EF-S. And are full frame lense for a crop camera.
Answered by: Rob K
Date published: 2023-05-30

Does this work with Sony FX6 and A7SIII?

Does this work with Sony FX6 and A7SIII?
Asked by: Maria
It does work with the FX6, I'm not sure about the A7SIII
Answered by: Robert
Date published: 2021-01-18

question

I'm assuming this Willa pro for the A6500 to use full frame emount glass right?
Asked by: Sully C.
You dont need an adapter to use Full Frame E-Mount glass on a a6500. This adapter is only for EF Mount glass.
Answered by: Jacob C.
Date published: 2018-08-27

would this work on a FX30?

would this work on a FX30?
Asked by: Gustavo
The Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x (Fifth Generation) is compatible with the Sony FX30 Digital Cinema Camera.
Answered by: Lawrence C
Date published: 2024-06-20

Is there any the other way round? I mean: Sony ...

Is there any the other way round? I mean: Sony E-Mount lens to Canon EF Body?
Asked by: Rafael
No, you can't adapt Sony E-Mount lenses onto a Canon EF-Mount because physically, the flange distances are not compatible with adapters.
Answered by: Zachariah
Date published: 2021-02-21

question

Would this Metabones work with the Sony FS700? I use the Canon 16-35mm and 24-70mm.
Asked by: Derek
Yes, this Metabones Speed Booster will allow you to use those lenses on the FS700. Since this is a Speedbooster design, the lenses image will be squeezed to better fit the sensor mitigating some of the sensor crop factor. With this comes a delightful side advantage that makes your lens brighter thus allowing better camera performance in low light.
Answered by: Dennis A L.
Date published: 2018-08-27
  • y_2025, m_4, d_30, h_7CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_23
  • loc_en_US, sid_1314354, prod, sort_[SortEntry(order=HAS_STAFF_ANSWERS, direction=DESCENDING)]
  • clientName_bhphotovideo
Whatever You Need, We've Got It