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Metabones Canon EF to Sony NEX E-Mount Speed Booster EF-E-SB


Canon EF to Sony NEX Speed Booster for Sony A7s/R/A7/A7II and PXW-FS7 / FS700R

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Exc VAT Price £464.10
Inc VAT Price £556.92
Cat no. EF-E-SB

Available to order


Canon EF to Sony NEX Speed Booster

Allows you to adapt your Canon (or third party) EF mount lenses to your Sony NEX-FS100 or FS700, or the new Sony A7s and the 4K XDCAM PXW-FS7. This unique adapter makes your lenses faster and wider. Please see below for more details.

Increase maximum aperture by 1 stop.
Increase MTF.
Makes lens 0.71x wider.
Optics designed by Caldwell Photographic in the USA (patent pending).
Electronic integration of aperture diaphragm, controlled by or from the camera body.
Partial autofocus support for late-model (post-2006) Canon-brand lenses.
Powered by camera body. No external power source required.
The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo cam ball heads.
High performance 32-bit processor and efficient switched-mode power supply.

All Metabones Adapters follow this tradition of uncompromising precision, robust build quality and outstanding finish.


Both camera-side and lens-side of the adapter are 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 - lens has no play, gap or wiggling when mounted on adapter and no adjustments are required to fit your lens.

Designed to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements.

Lens Compatibility

Supported Lenses:

EF lenses
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)
P, A, S, M exposure modes
Autofocus (see autofocus support section below)
Distance and zoom display on VG and FS series camcorders (see note 1)
Auto magnify (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 3)

Lenses NOT supported:

EF-S lenses
DX lenses
Lens correction such as peripheral shading, CA and distortion
Focus confirmation "chip" (e.g. Dandelion)
M42 screw mount adapters
Stacking non-Metabones/non-Conurus mount adapters on top
Certain telephoto lenses