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METABONES

Metabones EF to E Mount T Speed Booster ULTRA

  • Metabones EF to E Mount T Speed Booster ULTRA
  • Metabones EF to E Mount T Speed Booster ULTRA Back View

METABONES

Metabones EF to E Mount T Speed Booster ULTRA

  • Adapts Select EF Lenses to E Mount cameras
  • Increases Maximum Aperture by 1 Stop & Increases Angle of View By 0.71x
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Overview

For an updated version of this Speed Booster with improved optics, please see the Metabones EF to E Mount T Speed Booster ULTRA II.


The Metabones EF to E Mount T Speed Booster ULTRA is an adapter that allows you to mount Canon EF lenses to crop (APS-C) sensor Sony E mount cameras. It is particularly designed for Super35mm sensor, E mount cameras such as the Sony FS5 and Sony FS700 but also works great with smaller NEX APS-C sensor cameras, such as the a6500. This adapter maximizes a full frame EF mount lens' angle of view and provides a 1-stop increase for the connected camera. This allows a Sony E mount APS-C sensor to use more of the light gathered by an EF lens, which effectively reduces that lens' crop factor while making available to the sensor an additional 1 stop of light for each aperture setting. The T Speed Booster ULTRA supports electronic communication between the camera and lens, including AF, IS, and EXIF (where applicable).


Usage of this adapter with Canon EF-S lenses is not recommended due to the 1.6x crop image circle of EF-S lenses and the Sony NEX 1.5x crop factor sensor. EF-S lenses can be used but expect vignetting and experiment at your own risk. To connect EF/EF-S lenses on full frame sensors, like those found in the a7 series, the "Auto APS-C Size Capture" feature must be used.


Please see the "Notes" section for important information about autofocus and lens compatibility.


  • Increases Maximum Aperture by 1 Stop and Increases Angle of View By 0.71x

  • Retains Electronic Communication Between Lens and camera

  • Powered by camera Body

  • Retains Autofocus (See Notes for More)

  • Allows Aperture Control with Your camera
  • Open Aperture Button for manual Focus Lenses


  • Metabones EF to E Mount T Speed Booster ULTRA

  • Front Cap

  • Back Cap

  • Detachable Tripod foot

  • Allen Wrench

  • Carrying case


  • This adapter comes with a 1/4-20 thread socket in the foot for mounting stabilization onto the adapter to take stress off of long lenses.
  • This Speed Booster is compatible only with EF mount lenses and not Canon EF-S mount lenses.
  • This Speed Booster is designed for cameras with APS-C sensors. If you are using a full frame E mount camera, please make sure "APS-C/Super 35mm" is set to either "Auto" or "On".
  • This Speed Booster will not operate correctly when trying to use it on Canon's CN-E collection of cinema lenses for still photography purposes. This Speed Booster is functional with Compact-Servo CN-E lenses but note that some do not fully cover APS-C/Super 35mm when paired with this adapter.
  • The first two AF attempts are used to calibrate the lens. Half-press the shutter release button again after that and AF will lock successfully.
  • While technically compatible with any EF mount lens, please take notice if your third-party lens has any mount protrusions, like spikes or levers. These will damage the Speed Booster.
  • Autofocus is supported with this Speed Booster but with certain contrast/phase detection limitations. Please see the notes below about lens compatibility.
  • If you are attempting to pair both a Canon lens with a Canon extender to this Speed Booster, autofocus is disabled if the combined maximum aperture of the lens and the extender is f/5.6 or smaller (higher number). Note that this adapter is not at all compatible with Sony extenders.
  • Use of this Speed Booster with a body using an aftermarket battery grip may result in strange aperture changes. Turn off the battery grip if you experience this. Behavior is not found when using Sony-branded grips.
  • The following E mount camera bodies have been tested by Metabones for use with this Speed Booster:


    • Sony a9
    • Sony a7S, a7S II
    • Sony a7R, a7R II, a7R III
    • Sony a7, a7 II
    • Sony a5000, a6000, 63000, a6500
    • FS7, FS7 Mark II, FS5, FS700, 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


      • The following lenses have been tested by Metabones community members and then sanctioned by Metabones. Please note that, as of this writing, all of the following only support phase detection AF in the Sony a9. This list will expand over time. Please visit Metabones' website for the most recent results:


        • Canon EF 8-15mm f/4L Fisheye (Supports Smooth Iris)
        • Canon EF 14mm f/2.8L II
        • Canon EF 11-24mm f/4L
        • 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
        • Canon EF 24mm f/1.4L
        • Canon EF 24-70mm f/4L IS
        • Canon EF 24-105mm f/4L IS
        • Canon EF 28-80mm f/3.5-5.6 II
        • Canon EF 28-300mm f/3.5-5.6L
        • Canon EF 35mm f/1.4L II
        • Canon EF 35mm f/2L IS
        • Canon EF 35-350mm f/3.5-5.6L
        • Canon EF 40mm f/2.8 STM (Supports Smooth Iris)
        • Canon EF 50mm f/1.2L
        • Canon EF 50mm f/1.4
        • Canon EF 50mm f/1.8 STM (Supports Smooth Iris)
        • Canon EF 70-200mm f/2.8L
        • Canon EF 70-200mm f/2.8L IS
        • Canon EF 70-200mm f/2.8L IS II (Supports Smooth Iris)
        • Canon EF 70-200mm f/4L IS
        • Canon EF 70-200mm f/4L
        • Canon EF 70-300mm f/4-5.6L IS (Supports Smooth Iris)
        • Canon EF 75-300mm f/4-5.6 IS
        • Canon EF 85mm f/1.2L II
        • Canon EF 85mm f/1.8
        • Canon EF 100mm f/2.8L IS Macro (Supports Smooth Iris)
        • Canon EF 100-400mm f/4.5-5.6L IS
        • Canon EF 100-400mm f/4.5-5.6L IS II (Supports Smooth Iris)
        • Canon EF 180mm f/3.5L Macro
        • Canon EF 200mm f/2.8L II
        • Canon EF 300mm f/4L IS
        • Canon EF 400mm f/5.6L
        • Canon EF 400mm f/2.8L IS
        • Canon EF 500mm f/4L IS
        • Canon EF Extender 1.4x III
        • Canon EF Extender 2x II
        • 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 DG HSM
        • Sigma 24-105mm f/4 Art
        • Sigma 12-24mm f/4.5-5.6 (Version 1 Only)
        • 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
        • Tamron SP 15-30mm f/2.8 VC USD A012 (Supports Smooth Iris)
        • Tamron SP 24-70mm f/2.8 Di VC USD A007
        • Tamron SP 45mm f/1.8 Di VC USD F013 (Supports Smooth Iris)
        • Tamron SP 70-200mm f/2.8 Di VC USD A009 (Supports Smooth Iris)
        • Tamron 70-300mm f/4-5.6
        • Tamron SP 90mm f/2.8 Macro
        • Tamron 150-600mm f/5-6.3 VC USD A011 (Supports Smooth Iris)


          • The following are compatible but cannot contrast-detect effectively at all. Phase detection AF only or manual focus only are recommended:


            • Canon EF 24-70mm f/2.8L II
            • Canon EF 28-70mm f/3.5


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