Metabones - Adapter

BT2 EF to Micro 4/3 mount

407.85 EUR 391.53 EUR

MFR-CODE: MB_EF-m43-BT2
BLK-CODE: 324-0025

Electronic Lens Adapter
For MFT-mount Cameras
For Canon EF Lenses
Aperture Control
Auto Focus
USB socket
High Quality
1-year Warranty

~~407.85 EUR~~ 391.53 EUR

Features and Benefits		Limitations
Electronic Autofocus Can be powered either by camera body or by third-party external 5V power source (not included) Iris/aperture controlled by the camera body Image stabilization (IS) lens support 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) Other Detachable tripod foot compatible with Arca Swiss, Markins and Photo Clam ball heads. The opening is flocked with felt material to reduce internal reflection. Compatible with all MFT mount cameras, including GH4, OM-D, Blackmagic Cinema Camera, Blackmagic Pocket Cinema Camera and JVC GY-LS300. Supports EF-S lenses.		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. AFC (continuous AF) and AFF (flexible AF) modes are not supported Panasonic video AF may hunt more than a native lens or have unsatisfactory performance. Tamron lenses may have unsatisfactory video AF accuracy. Canon and Sigma lenses are fine. 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. 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. Iris changes are unsmooth but 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. No support for in-camera correction such as peripheral shading, CA and distortion

Features and Benefits

Limitations

Electronic

Autofocus
Can be powered either by camera body or by third-party external 5V power source (not included)
Iris/aperture controlled by the camera body
Image stabilization (IS) lens support
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)

Other

Detachable tripod foot compatible with Arca Swiss, Markins and Photo Clam ball heads.
The opening is flocked with felt material to reduce internal reflection.
Compatible with all MFT mount cameras, including GH4, OM-D, Blackmagic Cinema Camera, Blackmagic Pocket Cinema Camera and JVC GY-LS300.
Supports EF-S lenses.

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.
AFC (continuous AF) and AFF (flexible AF) modes are not supported
Panasonic video AF may hunt more than a native lens or have unsatisfactory performance.
Tamron lenses may have unsatisfactory video AF accuracy. Canon and Sigma lenses are fine.
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.
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.
Iris changes are unsmooth but 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.
No support for in-camera correction such as peripheral shading, CA and distortion

Description

Autofocus with an Optimum Balance of Accuracy, Speed, Consistency and Reliability
Autofocus is supported subject to certain limitations (see table below for details). We are pleased to report that Panasonic Micro Four Thirds camera bodies are capable of autofocusing fast (large maximum aperture) lenses accurately. Although our first and foremost priority is accuracy, we are able to make great strides in autofocus speed as well.

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 and GX8
Canon EF 8-15mm f/4L USM Fisheye Canon EF-S17-55mm f/2.8 IS USM Canon EF-S18-55mm f/3.5-5.6 IS II 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 100mm f/2.8 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 18-35mm f/1.8 DC Art 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 DXII	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
	Inaccurate
	Canon EF 50mm f/1.8 II Sigma 50mm f/1.4 EX HSM Tamron SP 24-70mm f/2.8 Di VC USD A007 Tamron 28-300mm f/3.5-6.3 XR Di VC A20 Tamron SP 70-200mm f/2.8 Di VC USD A009
	Manual focus only	Not supported
	Contax N lenses modified by Conurus Tamron SP 17-50mm f/2.8 VC B005 Zeiss ZE lenses	Focus confirmation "chips"

Manual Focus Lens Compatibility

Some improperly-made M42 screw mount adapters may short the electronic contacts of the Speed Booster and cause damage to the Speed Booster and/or camera body.

Focus confirmation "chips" such as Dandelion are incompatible.

Many manual focus lenses (e.g. OM 28/2.8, OM 50/1.8, Leica R 15/3.5) have rear protrusions (spikes, levers, other appendages) which would damage the optics and/or housing of Speed Booster. They need to be modified before they can be safely used on Speed Booster. Check and make sure there are no rear protrusions from the adapter/lens combination before using on Speed Booster. Scratches and damages caused by rear protrusions on Speed Booster are not covered by warranty.

List of manual focus lenses which REQUIRE MODIFICATION to be used on Speed Booster

Leica R

Super-Elmar-R 15mm
Elmarit R 28/2.8
Elmarit R 35/2.8
Summicron R 50/2

Nikon F

20/2.8 AI-S

Olympus OM

OM 18/3.5
OM 21/2
OM 21/3.5
OM 28/2.8
OM 50/1.8

Pentax K

Every Pentax K-mount lens has a protruding fin and an aperture lever. It does NOT fit.

STATUS

Status: New
Adapter Type: Lens Adapter

MORE SPECIFICATIONS

Power: USB DC input
Warranty: 1-Year
Country of Origin: Hong Kong
Extras: The adapter is made of brass, precision-machined and plated with chromium
Satin surface finish - just like your OEM lens and camera mounts
Precise fit and solid connection
USB Connector for external power

PHYSICAL

Availability: Usually in 12working days
Total Dimensions (WxHxD) (mm): 59x30x59
Total Weight (KG): 0.190

GENERAL FEATURES

Lens Mount: Canon EF
Auto Focus Support: Yes, for some lenses only
Manual Rings: 1 Ring(Aperture)
Camera Mount: MFT-Mount (Panasonic)
Aperture Control: Manual
Material: Brass with chromium plating
Suitable for: Panasonic MFT-Mount cameras (AG-AF100, GH4)
Image Stabilization support: Yes, only for some lenses
Glass: No

Adapter
Removable Tripod base
Front Lens Cap
Rear Lens Cap
Instructions

Pdf not available.

Video not available.

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