*up to 2nd day air - overnight available
The Metabones Canon EF to Micro Four-Thirds Mount Speed Booster XL 0.64x mounts EF glass to certain Micro Four-Thirds bodies such as the Panasonic GH4 & GH5. This pa0rticular XL version is special because it converts the normally super long crop factor of 2.34x when shooting in 4K on a GH4 to a remarkable 1.5x crop, effectively the same as a Super 35 sensor! That's right, your EF lenses will have the same focal length on a 4K GH5 as they would on a C100 Mark II or crop DSLR! The speed of any attached lens is increased by 1 1/3 stops, which means a 50mm f/1.2 lens would essentially be a 32mm f/0.80!!! #MINDBLOWN
This booster will vignette when used with APS-C lenses below 20mm with the Panasonic GH5 due to the full sensor 4k readout on the GH5. Full frame EF lenses are fine down to the Canon 11-24, but APS-C lenses like the Sigma 18-35 will vignette until 20mm.
We cannot recommend Metabones adapters for professional work. We reached this decision after LensProToGo folks and rental clients experienced repeated failures in the field. Though it might work much of the time, it’s our opinion that this product’s performance is too unpredictable to be trusted on high-value projects. Use for casual testing or try-before-you-buy purposes only. USE AT YOUR OWN RISK!
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:
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.
*Not yet tested
Metabones Speed Booster XL 0.64x Specifications:
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)
Image stabilization (IS) lenses
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 (see note 1)
Contax N mount lenses modified to Canon EF by Conurus (see note 2)
Contax 645 NAM-1 adapter modified to Canon EF by Conurus (see note 2)
Sigma, Tamron and Tokina lenses in Canon EF mount (see note 2)
External 5 Volt power supply (see note 6)
EF-S lenses (some EF-S lenses may need modification)
Lens correction such as peripheral shading, CA and distortion
Focus confirmation "chip" (e.g. Dandelion)
M42 screw mount adapters (see note 4)
Stacking non-Metabones/non-Conurus mount adapters on top (see note 5 and list of lenses which require modification below.)
Lens: Tamron SP 17-50mm F/2.8 XR Di II VC
For use with fast lenses (faster than f/1.8), the pre-boost apertures will be displayed in the camera.
Slow lenses will report boosted apertures to the camera body but fast lenses will report pre-boost apertures. We won't show f/0.8(Speed Booster XL Max. limit) with a f/1.2 lens attached, but show f/1.2 instead.
a) EF 85/1.2L attached, camera display = f/1.2, physical aperture (lens + Speed Booster combined) = f/0.8 (Speed Booster XL Max. limit).
b) Sigma 18-35/1.8 attached, camera display = f/1.0, physical aperture (lens + Speed Booster combined) = f/1.0.
Select the correct EF-MFT Speed Booster fits for your camera:
List of lenses (have been tested by metabones) with support on EF-M43 Smart Adapter. (Lenses which have been tested with EF-E Smart Adapter may refer to EF-E Smart Adapter product page.)
Canon EF zooms
Canon EF primes
Canon 85mm 1.2
Canon 100mm 2.8
Many manual focus lenses have rear protrusions (spikes, levers, other appendages) which would damage the optics and/or housing of Smart Adapter. They need to be modified before they can be safely used on Smart Adapter. Check and make sure there are no rear protrusions from the adapter/lens combination before using on Smart Adapter. 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.
Elmarit R 28/2.8
Elmarit R 35/2.8
Summicron R 50/2
Every Pentax K-mount lens has a protruding fin and an aperture lever. It does NOT fit.