Metabones SPEF-M43-BT6 – Canon EF to Micro Four Thirds T CINE Speed Booster XL 0.64x
GTIN: 4897050182130
CINE version Speed Booster XL 0.64x for Canon EF lenses on selected Micro Four Thirds cameras: 1 1/3 stops more light.
Metabones SPEF-M43-BT6 – Canon EF to Micro Four Thirds T CINE Speed Booster XL 0.64x
With 0.64x magnification the Speed Booster XL reduces the full-frame crop factor of the Panasonic GH4 from 2.0x to 1.28x and increases speed by 1 1/3 stops: a 50mm f/1.2 becomes a 32mm f/0.80. The CINE version has a positive-lock EF mount. Officially supported cameras include the Blackmagic Cinema Camera with MFT mount, the Pocket Cinema Camera and the Micro Cinema Camera.
Features
- Patented 6-element/4-group optical design by Caldwell Photographic (USA)
- Camera-controlled autofocus and aperture; powered by the camera or by an external 5V source (not included)
- Smooth iris with recent Canon (2009+), Tamron SP (2013+) and Sigma (2016+) lenses; IS lens and IBIS support
- Cinema EOS support (CN-E 18-80mm T4.4 L) with AF (external 5V via micro USB), auto iris and servo zoom
- Positive-lock EF lens mount
- Rubber gasket on the MFT mount, felt-flocked opening, detachable Arca Swiss tripod foot
Note: Supports only the cameras in the official list (Panasonic GH4-GH7, G9, GX8 and others; Olympus E-PL7, PEN-F; the Blackmagic models above). EF-S lenses need modification; EF-S and DX lenses do not cover the full MFT sensor in stills and FHD. On the GH5, full-frame lenses only.
Specifications
| Lens mount | Canon EF |
|---|---|
| Camera mount | Micro Four Thirds |
| Magnification | 0.64x |
| Aperture gain | +1 1/3 stops |
| Electronics | electronic contacts, autofocus, camera-controlled aperture, 5V micro USB input |
| Metabones code | MB_SPEF-M43-BT6 |
| Product Condition | New |
|---|---|
| Manufacturer | Metabones |
| manufacturer code | SPEF-M43-BT6 |
| Ean | 4897050182130 |






