Features and Benefits		Limitations
Optical Increase maximum aperture by 11/3 stop Increase MTF Makes lens 0.64x wider Patented 6-element/4-group optical design by Caldwell Photographic in the USA Supports 4k video mode with DX lenses (except on GH5). 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 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 (CN-E 18-80mm T4.4 L), including AF (requires external 5V power through micro USB port), auto iris and servo zoom Other Detachable tripod foot compatible with Arca Swiss, Markins and Photo Clam ball heads. Rubber gasket protects MTF mount connection from dust and moisture. The opening is flocked with felt material to reduce internal reflection.		Supports only Panasonic GH7, GH6, GH5m2, GH5s, GH5, GH4, GH3, G3, G5, G6, G7, G9, G9 II, G10, GF3, GF5, GF6, GX1, GX8, GX80/GX85, GX9, Olympus E-PL7, PEN-F, Blackmagic Cinema Camera with Micro Four Thirds mount**, Pocket Cinema Camera*** and Micro Cinema Camera*** EF-S lenses require modification to fit or may remain incompatible even after modification (but third party DX lenses can be used without modification) On GH5, Speed Booster XL can be used with full frame lenses only. DX lenses are unable to cover full-sensor-width readout + in-body image stabilizer (IBIS) EF-S and third party DX lenses do not cover the full Micro Four Thirds sensor in still photo and FHD video (but will cover 4k video mode on GH4, GX8 and GX80/85). 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/5.1 after boost. Some Tamron lenses may have unsatisfactory AF accuracy. No support for Focus Stacking and Focus Bracketing on Olympus. 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 T4.4 L 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

 

The Micro-4/3 mount Speed Booster^® XL 0.64x adapter designed exclusively for the Panasonic GH4/GH5/GH6/GH7 and other selected Micro Four Thirds cameras (refer to the below camera compatibility table), with a magnification of 0.64x. The Speed Booster XL 0.64x uses an advanced 6-element optical design to achieve extraordinary optical performance at apertures up to an incredible f/0.80, a new record for Micro Four Thirds format. 

 

The new Speed Booster XL 0.64x reduces the full-frame crop factor of the Panasonic GH4 from 2.0x to 1.28x, thus effectively transforming these cameras into APS-H format.  When the GH4 is used in Cinema 4k video mode the horizontal full frame crop factor is reduced from 2.34x to 1.50x, thus effectively transforming the GH4 into a super-35 format 4k cine camera.  In addition, the speed of any attached lens is increased by 1¹/₃ stops, with a maximum output aperture of f/0.80 when an f/1.2 lens is used.  For example, a 50mm f/1.2 becomes a 32mm f/0.80, which is the fastest aperture available for full size Micro Four Thirds format. (More information can be found in the press release here )

 

Compatibility

The Speed Booster XL 0.64x is similar to the Blackmagic-specific 0.64x BMCC Speed Booster (MB_SPEF-BMCC-BM1), but has been completely re-designed to meet the following requirements:

• The working distance has increased by 1mm to permit use on the Panasonic GH4 and a number of other Micro Four Thirds cameras without touching the flexible outer cover of the camera’s shutter mechanism.
   
• The optics are optimized for a standard Micro Four Thirds filter stack thickness of 4mm rather than the 2.4mm found in Blackmagic cameras.
   
• The image circle diameter has been increased to 21.63mm so that the full 17.3mm x 13mm Four Thirds format is covered.  This has been achieved while maintaining unusually high image quality over the 17.4mm image circle used by the Panasonic GH4 in its Cinema 4k video mode.

 

Although the Speed Booster XL 0.64x has extra clearance compared to the 0.64x BMCC Speed Booster, there are still a number of Micro Four Thirds cameras that are not supported due to mechanical clearance issues.  This is summarized in the table below, which is color-coded so that Green means the camera is supported and Red means the camera is not supported. 

Note that many of the Red-coded cameras actually do function, but there is a minor interference with the protective shutter cover.  Although slight contact with the shutter cover appears to have no effect on the functioning or cosmetics of either the camera or the Speed Booster we cannot support these combinations due to possible risk of damage.

BRAND	MICRO FOUR THIRDS CAMERA MODEL
Blackmagic	Cinema Camera	Pocket Cinema Camera (HD)	Micro Cinema Camera (HD)	Micro Studio Camera 4K	Pocket Cinema Camera 4K	Micro Studio Camera 4K G2 (BMMSC4K G2)	Studio Camera 4K Plus G2 (BMSC4K G2 Plus)	Studio Camera 4K Pro G2 (BMSC4K G2 Pro)	Studio Camera 4K (BMSC4K)	Studio Camera (BMSC)
JVC	GY-LS300
Olympus	E-M5	E-M1	E-M10	E-M5 II	E-M1 II
	PEN-F
	E-P1	E-P2	E-P3	E-P5
	E-PL1	E-PL2	E-PL3	E-PL5	E-PL6	E-PL7
	E-PM1	E-PM2
OM System	OM-1
Panasonic	AF100
	GH1	GH2	GH3	GH4	GH5	GH5s	GH5 Mk2	GH6	GH7
	G1	G10	G2	G3	G5	G6	G7	G9	G9 II
	GF1	GF2	GF3	GF5	GF6	GF7	GF8	GF800/ 850/9
	GX1	GX7	GX8	GX80/85	GX9
	GM1	GM5

 

GH7, XL or ULTRA?

In a nutshell, we recommend XL for full frame lenses and ULTRA for DX/APS-C lenses. For the long story, read the 'limitations' column.

 

Metabones Speed Booster XL 0.64x Specifications

Magnification:  0.64x

Crop Factor for Full Micro Four Thirds format:  1.28x

Crop Factor with GH4 in Cinema 4k (4096 x 2160) Video Mode:  1.5x

Maximum Output Aperture:  f/0.80 (with f/1.2 lens attached)

Rectilinear Distortion:  < 0.8%

Lens Elements/Groups:  6/4

Length Reduction:  6.2 mm

Camera Mount:  Micro Four Thirds

Image Format:  17.3 mm x 13.0 mm (full Micro Four Thirds format)

 

Select the correct EF-MFT Speed Booster fit for your camera:

 

Product Video

Features and Benefits		Limitations
Electronic Distance and zoom display (requires lenses supporting distance information) Cinema EOS lens support (CN-E 18-80mm T4.4 L, CN10x25 25-250mm T2.95, etc.), including AF, auto iris and servo zoom (may require external power)		No support for Focus Stacking and Focus Bracketing. Most 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 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 and CN 10x25 25-250mm T2.95.

---

Remark: Your PayPal receipt is your order confirmation. There is no separate email confirmation until shipment takes place.

Disclaimer: we are NOT licensed, approved or endorsed by Micro Four Thirds or Canon.

---

TruePDAF Technology™

TruePDAF Technology™ works by having additional data tailored for your lens, resulting in the highest performance possible with a lens mount adapter. Lens profile data of the following lenses are stored in your Speed Booster or Smart Adapter. The LED turns pink to indicate that a matching lens profile is found and TruePDAF Technology™ is operational.

Supported Cameras for TruePDAF Technology™

Panasonic G9 Mark II
Panasonic GH7

Clarification: every camera that is capable of PDAF will get PDAF, including all OM System and Olympus cameras which have PDAF capability, even if they are not on the list. The above cameras, when paired with a supported lens listed below, have higher PDAF performance that is often indistinguishable from native lenses. If your camera is not on the list but is capable of PDAF, it will still have excellent performance, just not reaching the level of a native lens.

Lenses with TruePDAF Technology™ Support

Clarification: all your autofocus lenses will get PDAF no matter they are on this list or not. The lenses on this list will get even better PDAF performance.

Canon EF8-15mm f4L Fisheye USM
Canon EF16-35mm f2.8L USM
Canon EF16-35mm f2.8L II USM
Canon EF16-35mm f4L IS USM
Canon EF17-35mm f2.8L USM
Canon EF17-40mm f4L USM
Canon EF20-35mm f2.8L
Canon EF20-35mm f3.5-4.5 USM
Canon EF24-70mm f2.8L USM
Canon EF24-70mm f2.8L II USM
Canon EF24-85mm f3.5-4.5 USM
Canon EF24-105mm F4L IS USM
Canon EF24-105mm f4L IS II USM
Canon EF28-70mm f3.5-4.5 II
Canon EF28-80mm f3.5-5.6 II
Canon EF28-90mm f4-5.6 II USM
Canon EF28-105mm f3.5-4.5 USM
Canon EF28-105mm f3.5-4.5 II USM
Canon EF28-105mm f4-5.6 USM
Canon EF28-135mm f3.5-5.6 IS USM
Canon EF28-200mm f3.5-5.6 USM
Canon EF35-70mm f3.5-4.5
Canon EF35-80mm f4-5.6 III
Canon EF35-135mm f3.5-4.5
Canon EF35-135mm f4-5.6 USM
Canon EF35-350mm f3.5-5.6L USM
Canon EF35mm f1.4L USM
Canon EF35mm f2
Canon EF40mm f2.8 STM
Canon EF50mm F1.4 USM
Canon EF50mm f1.8
Canon EF50mm f1.8 II
Canon EF50mm f2.5 Compact Macro
Canon EF55-200mm f4.5-5.6 USM
Canon EF70-200mm f2.8L USM
Canon EF70-200mm f2.8L IS II USM
Canon EF70-200mm f4L USM
Canon EF70-200mm f4L IS USM
Canon EF70-300mm f4-5.6 IS USM
Canon EF70-300mm f4-5.6 IS II USM
Canon EF100-300mm f4.5-5.6 USM
Canon EF100-300mm f5.6
Canon EF100-400mm f4.5-5.6L IS USM
Canon EF100mm f2.8 Macro
Canon EF100mm f2.8L Macro IS USM
Canon EF135mm f2L USM
Canon EF180mm f3.5L Macro USM
Canon EF200mm f1.8L USM
Canon EF200mm f2.8L II USM
Canon EF300mm f2.8L USM
Canon EF Extender 1.4x I/II/III
Canon EF Extender 2x I/II/III
Samyang AF 85mm F1.4
Sigma 12-24mm F4.5-5.6 EX DG Ashperical HSM
Sigma 20mm F1.4 DG HSM Art
Sigma 24-70mm F2.8 DG OS HSM Art
Sigma 24mm F1.4 DG HSM Art
Sigma 24mm F1.8 EX DG Aspherical Macro
Sigma 28-80mm F3.5-5.6 Aspherical Macro HF
Sigma 28mm F1.4 DG HSM Art
Sigma 28mm F1.8 EX DG Aspherical Macro
Sigma 35mm F1.4 DG HSM Art
Sigma 50mm F1.4 DG HSM Art
Sigma 70-300mm F4-5.6 DG OS
Sigma 70mm F2.8 DG Macro Art
Sigma 85mm F1.4 DG HSM Art
Sigma 85mm F1.4 EX DG HSM
Sigma 100-400mm F5-6.3 DG OS HSM Contemporary
Sigma 105mm F1.4 DG HSM Art
Sigma 150-600mm F5-6.3 DG OS HSM Contemporary
Sigma APO 50-500mm F4-6.3 EX DG HSM
Sigma APO 50-500mm F4.5-6.3 DG OS HSM
Sigma APO 135-400mm F4.5-5.6 RF ZEN
Sigma APO 300-800mm F5.6 EX DG HSM
Sigma APO 70-210mm F2.8
Sigma Macro 70mm F2.8 EX DG
Sigma Macro 90mm F2.8
Sigma Macro 105mm F2.8 EX DG OS HSM
Tamron 28-300mm F3.5-6.3 Di VC PZD
Tamron AF 28-200mm F3.8-5.6 Aspherical 71D
Tamron AF 28-300mm F3.5-6.3 XR Di LD Aspherical [IF] Macro A061
Tamron SP 24-70mm F/2.8 Di VC USD
Tamron SP 70-200mm F/2.8 Di VC USD
Tamron SP 70-300mm F/4-5.6 Di VC USD
Tamron SP 90mm F/2.8 Di Macro VC USD
Tamron SP 150-600mm F/5-6.3 Di VC USD
Tamron SP AF 180mm F3.5 Di LD [IF] Macro B01
Tamron SP AF 200-500mm F5.0-6.3 Di LD [IF] A08
Tamron SP AF28-75mm F/2.8 XR Di LD Aspherical A09
Tamron SP AF70-200mm F2.8 Di

 

Electronic Features

• Phase-detection autofocus (PDAF) is supported no matter which AF lens is used. Adapters support PDAF by translating pertinent metadata about the optics between the lens interfaces. In this way, broad support of the widest range of lenses is made possible.
• Excellent video AF and AF-C performance on cameras with PDAF support.
• Electronic manual focusing (e.g. EF 85/1.2L II, EF 50/1.8 STM and discontinued EF 50/1.0L)
• Lens iris/aperture is set by the controls on the camera body.
• Both optical image stabilization (IS) lens and in-body image stabilization (IBIS) support, with complete control over which one to use.
• Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lens models.
• LED indicator shows communication status and whether a match is found in the TruePDAF Technlogy™ database. 
• Powered by camera body. With most lenses, no external power source required.

Mechanical Features

• 'T' true flocking to reduce internal reflection.
• Rubber gasket protects the camera mount connection from dust and moisture.
• Aluminum alloy and brass construction with chromium plating.
• Satin surface finish.
• Detachable tripod foot compatible with Arca Swiss Style ball head, such as Markins and Photo Clam or attach to quick release plate by a 1/4"-20 screw. An optional Metabones Mount-Rod Support Kit II is available to securely mount the adapter to your 15mm support rods system.

 

Lens Compatibility List

Compatible Lenses	Incompatible Lenses
Canon CN Cinema Lens(see note 1) Canon EF Lens Canon EF Extender  Carl Zeiss ZE Lens Sigma EF Lens Tamron EF Lens Tokina EF Lens Contax N lenses modified by Conurus Canon EF Extender 1.4x (all versions) Canon EF Extender 2x (all versions)	Laowa 200mm F/2.0 Tamron 70-300mm F/4-5.6 VC USD A005 Tokina Opera 50mm F/1.4
	Limitations
	No Lens OIS/VC Support Tamron SP 15-30/2.8 VC USD A012  Tamron 150-600mm F/5-6.3 VC USD A011  Tamron 28-300mm f/3.5-6.3 XR Di Macro A06    Cannot zoom to widest position even after modification Canon EF-S 18-135mm F/3.5-5.6 IS STM Canon EF-S 18-135mm F/3.5-5.6 IS USM (Nano)    No AF Support Tamron SP 17-50mm F/2.8VC B005 Tamron 28-300mm F/3.5-6.3 VC A20 Sigma 18-125mm F/3.5-5.6DC OS HSM    No Iris Support without External Power Supply Canon EF24-70mm F/2.8L USM (I)  Canon EF100mm F/2.8 USM Macro (non-L) Tamron 18-270mm F/3.5-6.3 VC PZD B008    AF may not be accurate Canon EF 50mm f/1.8 II  Canon EF 28-70mm f/3.5-4.5 II Sigma 50mm f/1.4 EX HSM Tamron 18-250mm f/3.5-6.3 Di II Macro A18 Tamron 24-70mm f/2.8 VC USD A007 Tamron 28-300mm f/3.5-6.3 XR Di Macro A06 Tokina AT-X PRO 11-16mm f/2.8 DX (I)

 

Unsupported List

Native teleconverters Lens correction such as peripheral shading, CA and distortion  AF may not work if the maximum aperture of the lens plus any EF Extender or other teleconverter attached is smaller than f/8. Some early film-era lenses have a large amount of backlash and may not be able to achieve the AF accuracy required for digital cameras. Old lenses with faulty sensors due to wear and tear may lead to AF problems on a mirrorless camera even though the lens may appear to function normally on a DSLR. Focus confirmation "chip" (e.g. Dandelion) M42 screw mount adapters (see note 3) Stacking non-Metabones/non-Conurus mount adapters on top (see note 3 and list of lenses which require modification below.)

 

Notes:

Note(1) CN-E Compact-Servo lens with some cameras may require external power to autofocus.

Canon CN series (without the E suffix) always require external power supplied through a 12-pin Hirose connector.

Use of Canon Compact-Servo Cinema lenses such as CN-E 18-80mm T4.4 for still photography is not supported. (May be functional, but much slower than lenses designed for still photography.)

Note(2) With fast lenses (faster than f/1.4), the pre-boost apertures will be displayed in the camera.

Note (3) Some improperly-made M42 screw mount adapters may short the electronic contacts of the Speed Booster/ Smart Adapter and cause damage to the adapter and/or camera body.

 

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

Many manual focus lenses 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 or by poor quality adapters are not covered by warranty. The following is an incomplete list of lenses known to be incompatible.

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.