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

SKU: MBSPEFEBT4 MFR: MB_SPEF-E-BT4
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Key Features

  • Maximize your Sony E-mount camera with this Canon EF lens adapter.
  • Achieve a wider field of view with the 0.71x Metabones Speed Booster ULTRA II.
  • Capture stunning images; this lens adapter enhances your camera's aperture.
  • Enjoy fast, reliable autofocus on compatible Sony cameras with select lenses.
  • Use your favorite Canon EF lenses on Sony E-mount bodies with ease.
  • Get sharp, clear images; this adapter maintains excellent image quality.
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Questions & Answers

VICTOR D : How well does this converter work with the Sony α7R IV?ACCOUNTS P : I would suggest a less expensive "regular" metabones adapter for a full frame camera like the A7. One of the features of the speed booster is making the frame wider on smaller sensors (like FS5), but this is not the case on a full frame sensor (at least in my experience).ANTHONY C R : Ok
JOHN H : Hi, Any issues using Canon EF Lens to Sony E Mount T Speed Booster ULTRA 0.71x II between my Sony FS5 and the Sigma 24-70 f2.8 DG OS HSM ART?KYLE L : I haven't used the new Sigma 24-70, but I do use the Speed Booster with other Sigma Art lenses and an FS5 and α6300 and it works well.
Shopper : Why Did You Choose This?JAYDEN M : Hopefully it does the jobSTEVE L : I own mostly Canon lenses (upgrading from c100mk1 to FS5II)

Reviews about this item

Review Summary

2019-01-15T18:00:28

Rated 5 out of 5

Really works well

Really works well especially with “L” glass. Low light has never been so bright. Locks firmly.

STANLEY B.

2018-12-19T09:22:10

Rated 3 out of 5

Recommended but it has limitations

Works pretty well with my Canon lenses and Sony A7III. So far a few times the autofocus will stop, so I have to turn the camera off and on again and sometimes reattach the lens for it to go back to normal AF. One surprise I had is that with the Metabones adapter on the A7III you can't shoot full frame, only with the APS-C sensor selected. So now I have a really fancy 10MP camera until I upgrade my lenses from Canon to Sony.

ZACH C.

2018-06-29T11:00:17

Rated 5 out of 5

SO worth it!

I was VERY leery on spending this kind of money on this since I didn't like how my sigma adapter performs. I can now use my 2 Sigma Art lenses on my Sony with no lag and no focus issues!

KAT A.

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Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter Specifications

  • Tested Sony Camera Bodies

    A9, A7SII, A7RII, A7II, A7S, A7R, A7
    A6500, A6300, A6000, A5000
    PXW-FS7M2, PXW-FS5, PXW-FS7, NEX-FS700, NEX-FS100
    NEX-EA50, NEX-VG900, NEX-VG30, NEX-VG20, NEX-VG10
    NEX-7, NEX-6, NEX-5R, NEX-5N, NEX-5, NEX-C3, NEX-3

  • Lens compatibility

    Fast AF on all E-mount cameras (phase detection AF only with Sony A9):
    Canon EF 8-15mm f/4L USM Fisheye
    Canon EF 11-24mm f/4L USM
    Canon EF 16-35mm f/2.8L USM
    Canon EF 16-35mm f/4L IS USM
    Canon EF 20-35mm f/3.5-4.5 USM
    Canon EF 24mm f/1.4L USM
    Canon EF 24-105mm f/4L IS USM
    Canon EF 28-80mm f/3.5-5.6 II
    Canon EF 40mm f/2.8 STM
    Canon EF 50mm f/1.2L USM
    Canon EF 50mm f/1.4 USM
    Canon EF 50mm f/1.8 STM
    Canon EF 70-200mm f/2.8L IS II USM

  • Lens compatibility (Cont.)

    Canon EF 70-200mm f/4L IS USM
    Canon EF 70-200mm f/4L USM
    Canon EF 70-300mm f/4-5.6L IS USM
    Canon EF 85mm f/1.2L II USM
    Canon EF 100mm f/2.8L Macro IS USM
    Canon EF 100-400mm f/4.5-5.6L IS USM
    Canon EF 100-400mm f/4.5-5.6L IS II USM
    Canon EF 180mm f/3.5L Macro USM
    Canon EF 200mm f/2.8L II USM
    Canon EF 300mm f/4L IS USM
    Canon EF 400mm f/5.6L USM
    Canon EF Extender 1.4x III
    Canon EF Extender 2x II
    Sigma 24-105mm f/4 DG OS Art

  • Lens compatibility (Cont..)

    Sigma 50mm f/1.4 DG HSM
    Tamron SP 15-30mm f/2.8 VC USD A012
    Tamron SP 24-70mm f/2.8 Di VC USD A007
    Tamron SP 45mm f/1.8 Di VC USD F013
    Tamron SP 70-200mm f/2.8 Di VC USD A009
    Tamron 70-300mm f/4-5.6
    Tamron SP 90mm f/2.8 Macro
    Tamron 150-600mm f/5-6.3 VC USD A011

    Tested by the community, thanks!:
    Canon EF 14mm f/2.8L II USM
    Canon EF 24-70mm f/4L IS USM
    Canon EF 28-300mm f/3.5-5.6L USM
    Canon EF 35mm f/1.4L II USM

  • Lens compatibility (Cont...)

    Canon EF 35mm f/2L IS USM
    Canon EF 35-350mm f/3.5-5.6L USM
    Canon EF 70-200mm f/2.8L IS USM (Mark I)
    Canon EF 70-200mm f/2.8L USM (non-IS)
    Canon EF 75-300mm f/4-5.6 IS USM
    Canon EF 85mm f/1.8 USM
    Canon EF 400mm f/2.8L IS USM (Mark I)
    Canon EF 400mm f/5.6L USM
    Canon EF 500mm f/4L IS USM (Mark I)
    Sigma 12-24mm f/4.5-5.6 (Ver I)
    Sigma 20mm f/1.4 DG HSM Art
    Sigma 24mm f/1.4 DG HSM Art
    Sigma 35mm f/1.4 DG HSM Art
    Sigma 50mm f/1.4 Art

  • Lens compatibility (Cont....)

    Sigma 50-500mm f/4-6.3 OS HSM
    Sigma 70-200mm F2.8 APO EX DG OS HSM
    Sigma 85mm f/1.4 EX DG HSM
    Sigma 150mm f/2.8 Macro
    Sigma 150-600mm f/5-6.3 OS HSM Contemporary

    Phase-detect AF on A9, A7RII, A7II, A6500 and A6300 only, unable to contrast-detect AF accurately if at all:
    Canon EF 24-70mm f/2.8L II USM
    Canon EF 28-70mm f/3.5-4.5 II
    Canon EF 35mm f/1.4L USM
    Canon EF 50mm f/1.8 II
    Canon EF 100mm f/2.8 Macro USM
    Canon EF 135mm f/2L USM

  • Lens compatibility (Cont.....)

    Contax N Vario Sonnar 17-35mm f/2.8
    Contax N Planar 50mm f/1.4
    Contax N Vario Sonnar 70-200mm f/3.5-4.5
    Contax N Planar 85mm f/1.4

    Manual focus only:
    Samyang 35/1.4
    Zeiss CP.2 25mm/T2.9
    Zeiss CP.2 100mm/T2.1
    Zeiss ZE Distagon 15/2.8
    Zeiss ZE Distagon 21/2.8
    Zeiss ZE Distagon 35/2
    Zeiss ZE Makro-Planar 50/2
    Zeiss ZE Makro-Planar 100/2

  • Lens compatibility (Cont......)

    Not supported:
    Focus confirmation "chip" (e.g. Dandelion)
    Tamron 28-300/3.5-6.3 XR Di VC LD Aspherical [IF] MACRO A20

  • Lens Mount

    Canon EF

  • Camera Mount

    Sony E (APS-C)

  • Magnification

    0.71x

  • Groups/Elements

    4/5

  • UPC Code

    4897050182222

Models
Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter
$649.00

Temporarily On Backorder

Although this item is temporarily on Backorder, you can order it now and it will ship as soon as it arrives. Your card will only be charged once item is shipped.

Wooden Camera Sony E-Mount to LPL Mount Adapter (Pro)
$599.00

Ships from Manufacturer

Usually ships within 2-4 Days. Please note: Your card will be charged when order is submitted to the vendor (usually within 24 hours).

FeaturesSpeedBooster / BaveyesBasic AdapterInterchangeable Mounts
Camera Fitting (Male)Sony E (NEX)Sony E (NEX)Sony E (NEX)
Lens Fitting (Female)Canon EOSLPL MountZeiss CP.3

About Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter

FEATURED REVIEWS

Really works well

By STANLEY B.

Really works well especially with “L” glass. Low light has never been so bright. Locks firmly.

SO worth it!

By KAT A.

I was VERY leery on spending this kind of money on this since I didn't like how my sigma adapter performs. I can now use my 2 Sigma Art lenses on my Sony with no lag and no focus issues!

Overcome the limitations of your camera system with the high-quality Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter. This innovative and durable adapter is designed to convert Canon EF lenses to a Sony E-Mount system, providing a versatile solution for photographers who use multiple camera brands.

The compact adapter incorporates an advanced 5-element/4-group optical design, featuring ultra-high index tantalum-based optical glass. This cutting-edge design ensures extraordinary optical performance, enhancing corner sharpness, reducing distortion, and minimizing vignetting.

The Speed Booster ULTRA II has a magnification of 0.71x, effectively reducing the crop factor of mirrorless cameras with DX-sized sensors, such as Sony E-mount and Fuji X-mount cameras, from 1.5x to 1.07x. This makes it an indispensable tool for photographers seeking to improve image quality, especially in low light conditions.

The ULTRA II design utilizes exotic materials at the forefront of glassmaking technology, ensuring optimal performance with virtually all full-frame SLR lenses. It excels with professional-grade f/2.8 zoom lenses, transforming them into high-speed zooms with excellent contrast and resolution from the center to the edges of the image.

The adapter also supports AF-C tracking during high-speed drive at up to 10fps on Sony A9, and offers smooth iris support with the latest Canon, Tamron, and Sigma lenses. A custom function button allows for more than 50 functions, such as Aperture Preview and Eye-AF, on A9, A7 series, A6500, and A6300.

The Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter is also equipped with a rubber gasket to protect the E-mount connection from dust and moisture, and a detachable tripod foot compatible with Arca Swiss, Markins, and Photo Clam ball heads.

This adapter increases the maximum aperture by 1 stop and makes the lens 0.71x wider, enhancing your camera's capabilities. It also supports 5-axis in-body image stabilization of A7II, A7RII, and A7SII, and is powered by the camera body, eliminating the need for an external power source.

With its fast contrast-detection AF on all E-mount cameras and pure phase-detection autofocus support on A9, A7RII, A7II, A6500, and A6300, this adapter ensures sharp, clear images every time.

Please note that full-frame lenses are required for use with this adapter, and EF-S/DX/DC/Di II lenses are not supported. Autofocus may not work if the maximum aperture of the lens plus any EF Extender or other teleconverter attached is smaller than f/8 before boost or smaller than f/5.6 after boost.

Experience the difference in your photography with the Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter.

Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter Features

  • Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter

Warranty Information

This product has a limited warranty of 12 months.

Key Features

  • Maximize your Sony E-mount camera with this Canon EF lens adapter.
  • Achieve a wider field of view with the 0.71x Metabones Speed Booster ULTRA II.
  • Capture stunning images; this lens adapter enhances your camera's aperture.
  • Enjoy fast, reliable autofocus on compatible Sony cameras with select lenses.
  • Use your favorite Canon EF lenses on Sony E-mount bodies with ease.
  • Get sharp, clear images; this adapter maintains excellent image quality.

What's in the box:

  • Metabones Canon EF to Sony E-Mount T Speed Booster ULTRA II 0.71x Adapter (Fifth Generation)
  • Front Cap
  • Rear Cap
  • Tripod Foot Hex Key
  • Metabones 1 Year Limited Warranty