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

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

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

B&H # MEMBSPEFEBT3 MFR # MB_SPEF-E-BT3
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Product Highlights

  • Canon EF Lens to Sony E-Mount Body
  • Positive-Lock Canon EF Lens Mount
  • Increases Angle of View by 0.71x
  • Increases Maximum Aperture by 1 Stop
  • Switch for In-Body Image Stabilization
  • Smooth Iris with Select Adapted Lenses
  • Support for Phase- & Contrast-Detect AF
  • Programmable Fn Button; Status LED Light
  • Weather-Resistant Rubber Mount Gasket
  • Compatible with Sony PXW-FS7 Mark II
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Metabones MB_SPEF-E-BT3 overview

  • 1Description

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 EF to E Mount T CINE Speed Booster ULTRA 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.

This cinema-styled electronic adapter features a positive-lock lens mount that will ensure that your adapted lenses are secure. Further improving on previous generations of Smart Adapters, this fifth-generation model now features a rubber gasket to protect the camera's mount from dust and moisture, offers a status notification LED light to check operation modes, and a dedicated switch that controls in-body image stabilization of select cameras. Also, this version is compatible with the Sony PXW-FS7 Mark II video camera.

This adapter is equipped with numerous capabilities thanks to the use of a high-performance 32-bit processor. The features include support for both phase-detect and contrast-detect AF systems as well as the ability to control the aperture from the camera body. Smooth iris effects are possible as well on select lenses and 5-axis stabilization is available thanks to communication of distance information with supported lenses. Also, it features a programmable function button, enables electronic (focus-by-wire) manual focusing, transmits Exif data to the camera, and works with in-lens image stabilization. Additionally, distance and zoom is displayed on certain camcorders and mirrorless cameras, auto magnify can be enabled, and it can automatically switch into APS-C mode depending on the lens used.

Beyond electronic communication, the adapter has many physical advantages as well, such as a black felt flocking on the inside of the adapter that prevents reflections. For larger lenses, there is a removable Arca-type compatible tripod foot with a 1/4"-20 thread on the base.

Allows users to adapt a full-frame Canon EF-mount lens to an APS-C/Super35 Sony E-mount camera or a full-frame camera in APS-C mode.
Advanced 5 element in 4 group optical construction uses ultra-high index tantalum-based glass that increases the angle of view of a full-frame lens by 0.71x and increases the maximum aperture by 1 stop. This effectively compensates for the 1.5x crop factor of APS-C cameras and provides an image similar to that of a full-frame lens on a full-frame camera.
Positive-lock lens mount provides extra security when attaching large lenses.
Electronic contacts permit transmission of data between the lens and camera enabling autofocus, auto exposure, image stabilization, aperture control from the camera body, saving Exif information, and more.
Status notification LED light on the adapter will show the user what mode the adapter is currently in.
Dedicated switch for controlling in-body image stabilization.
Programmable function button for rapid access to commonly used settings and features.
Support for phase-detect AF with the a7R II, a7 II, a6500, and a6300 cameras.
Compatible with Sony PXW-FS7M2 (FS7 Mark II) camera.
Smooth iris support with select Canon (2009 and later), Tamron (SP series 2013 and later), and Sigma (2016 and later) lenses.
Enables electronic manual focusing on lenses, such as the Canon EF 85mm f/1.2L II, that use a focus-by-wire system.
Support for distance and zoom display, auto magnify, and auto APS-C Size Capture settings on select cameras.
Internal felt flocking prevents reflections.
Removable Arca-type compatible tripod foot with 1/4"-20 thread.
Powered by camera body.
In the Box
Metabones Canon EF Lens to Sony E Mount T CINE Speed Booster ULTRA 0.71x (Fifth Generation)
  • Front Cap
  • Rear Cap
  • Tripod Foot Hex Key
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Metabones MB_SPEF-E-BT3 specs

    Lens Mount Canon EF
    Camera Mount Sony E (APS-C)
    Magnification 0.71x
    Groups/Elements 4/5
    Dimensions 3.6 x 3.5 x 1.0" / 9.1 x 8.8 x 2.7 cm
    Weight 8.5 oz / 242 g
    Packaging Info
    Package Weight 0.95 lb
    Box Dimensions (LxWxH) 4.8 x 4.7 x 2.4"

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