METABONES ULTRA 0.71X CANON EF TO M4/3

Optical

  • Increase maximum aperture by 1 stop
  • Increase MTF of any lens attached
  • Makes lens 0.71x wider
  • Patented 5-element/4-group optical design incorporating ultra-high index tantalum-based optical glass by Caldwell Photographic in the USA

Electronic

  • Autofocus
  • Iris/aperture controlled by the camera body
  • Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lenses
  • Image stabilization (IS) lens support
  • Support for cameras with in-body image stabilization (IBIS), including Panasonic GX7, GX8, GX80/85 and Olympus cameras
  • Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
  • EXIF (focal length, aperture, zoom range)
  • Distance and zoom display on camcorders (requires lenses supporting distance information)
  • Cinema EOS lens support
  • Compatible with all MFT mount cameras, including GH4, OM-D, Blackmagic Cinema Camera, Blackmagic Pocket Cinema Camera.

Limitations

  • EF-S lenses require modification to fit or may remain incompatible even after modification (but third party DX lenses can be used without modification)
  • Some EF-S and DX lenses may not have enough coverage of the entire image circle for stills after widening by 0.71x (but video will have enough coverage).
  • No video AF for Olympus
  • AF 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.
  • AFC (continuous AF) and AFF (flexible AF) modes are not supported, except on Olympus OM-D E-M1.
  • Panasonic video AF may hunt more than a native lens or have unsatisfactory performance.
  • Some Tamron lenses may have unsatisfactory AF accuracy.
  • No support for Focus Stacking and Focus Bracketing on Olympus.
  • On Olympus, other than E-M1, you may move the single AF point among any of the 81, but you may not multi-point AF. There is no restriction on E-M1 and Panasonic.
  • Very early Olympus models (e.g. E-PL1) have no autofocus support.
  • EF-mount lenses are not silent but may make audible click noises during autofocus operation and iris changes which may be picked up by the built-in microphone of the camera. An external microphone is recommended for video.
  • Use of Canon Cinema lenses such as CN-E 18-80mm T4.4L IS KAS S for still photography is not supported.
  • Iris changes are in 1/8 stop steps which may be noticeable in video recordings. Programmed exposure mode and shutter priority exposure mode should not be used for video. This limitation does not apply to Cinema EOS lenses which permit fine resolution iris control, such as CN-E 18-80mm T4.4 L IS KAS S.
  • No support for in-camera correction such as peripheral shading, CA and distortion

Camera Body Compatibility List

  • Olympus: E-M1, E-M1 Mark II, E-M5, E-M5 Mark II, E-M10, PEN-F, E-P5, E-PL3
  • Panasonic: GX1, GX7, GX8, GX80/85, GH1, GH4, GH5, G2, G3, G5, G7, GM1, GF3, AF100
  • Blackmagic: Micro Cinema Camera, Pocket Cinema Camera


Autofocus Lens Compatibility List

The following table lists lenses which has been tested. Other lenses not listed here typically works well, too.°

Accurate

Tested by the community, thanks!

Accurate only on newer cameras such as
 Panasonic G7, GX8 and GX80

Canon EF 8-15mm f/4L USM Fisheye*
Canon EF 20-35mm f/3.5-4.5 USM
Canon EF 24-105mm f/4L IS USM
Canon EF 28-80mm f/3.5-5.6 II
Canon EF 35-80mm f/4-5.6
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*
Canon EF 70-300mm f/4-5.6L IS USM*
Canon EF 85mm f/1.2L II USM
Canon EF 100mm f/2.8L IS Macro 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 Extender 1.4x III
Canon EF Extender 2x
Sigma 18-125mm f/3.8-5.6 DC HSM
Sigma 24-105mm f/4 Art
Tokina AT-X PRO 11-16mm f/2.8 DX II

Canon EF 70-200mm f/2.8L IS USM (Mark I)
Canon EF 85mm f/1.2L USM (Mark I)
Canon EF 200mm f/2.0L IS USM
Canon EF 300mm f/2.8L IS USM (Mark I)
Canon EF 400/2.8L IS USM (Mark I)

Canon EF 70-200mm f/4L USM (non-IS)
Canon EF 135mm f/2L USM
Canon EF 200mm f/2.8L II USM
Canon EF 300mm f/4L IS USM
Canon EF 400mm f/5.6L USM
Sigma 18-35mm f/1.8 DC Art
Sigma 50-100mm f/1.8 DC HSM Art 016*
Tamron SP 15-30mm f/2.8 VC USD A012*
Tamron 18-270mm f/3.5-6.3 VC PZD B008
Tamron SP 45mm f/1.8 VC USD F013*

Inaccurate

Require external USB power supply owing
 to high current consumption; AF inaccurate

Canon EF 28-70mm f/3.5-4.5 II
Canon EF 50mm f/1.8 II
Canon EF 100mm f/2.8 Macro USM
Sigma 50mm f/1.4 EX HSM
Tamron 18-250mm f/3.5-6.3 Di II Macro A18
Tamron 18-270mm f/3.5-5.6 Di II VC B003
Tamron SP 24-70mm f/2.8 Di VC USD A007
Tamron 28-300mm f/3.5-6.3 XR Di Macro A06
Tamron SP 70-200mm f/2.8 Di VC USD A009*
Tokina AT-X PRO 11-16mm f/2.8 DX (I)

Tamron 28-300mm f/3.5-6.3 XR Di VC A20
Tamron 150-600/5-6.3 VC USD A011*

Does not fit, even after modification

Manual focus only

Not supported

Canon EF-S 18-135mm f/3.5-5.6 IS Nano USM

Contax N lenses modified by Conurus
Tamron SP 17-50mm f/2.8 VC B005
Zeiss ZE lenses

Focus confirmation "chips"


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