Metabones Canon EF to BMCC T Speed Booster (Black Matt)

Metabones Canon EF to BMCC T Speed Booster (Black Matt)(MB_SPEF-BMCC-BT1)

Canon EF to BMCC mount T Speed BoosterTM  adapters designed exclusively for the Blackmagic 2.5k Cinema Camera (BMCC). Note that the new Speed Boosters will only attach to Blackmagic cameras equipped with a Micro-4/3 mount.  They cannot be attached to standard Micro 4/3 cameras.

The new 0.64x Speed Booster reduces the full-frame crop factor of the BMCC from 2.39x to 1.53x, thus effectively transforming it into a Super-35 format 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.  

Supported

EF lenses

BMCC 2.5K*, BMPCC and Digital Bolex* D16 MTF camcorders

Image stabilization (IS) lenses

Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L) on BMPCC

EXIF (focal length, aperture, zoom range) on BMPCC

Distance and zoom display on BMPCC (with active MFT mount) camcorder . However, this feature is not for BMCC 2.5K.

Contax N mount lenses modified to Canon EF by Conurus 

Contax 645 NAM-1 adapter modified to Canon EF by Conurus 

Sigma, Tamron and Tokina lenses in Canon EF mount 

Not supported 

Autofocus

EF-S lenses

GH4

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 

Lens: Tamron SP 17-50mm F/2.8 XR Di II VC

Note:

Requires lenses supporting distance information.

A third party zoom lens may need to be registered with the Speed Booster/Smart Adapter first in order to detect its maximum aperture. 

This Speed Booster is designed to cover an BMCC image circle which is not big enough to cover a full-size 36mm x 24mm sensor.

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/0.7 with a f/1.2 lens attached, but show f/1.2 instead. 

Example:

a) EF 85/1.2L attached, camera display = f/1.2, physical aperture  (lens + Speed Booster combined) = f/0.74.

b) Sigma 18-35/1.8 attached, camera display = f/1.0, physical aperture (lens + Speed Booster combined) = f/1.0.

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.

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 BoosterTM They need to be modified before they can be safely used on Speed BoosterTM 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 BoosterTM are not covered by warranty.

This Speed Booster may NOT be fully compatible with GH4 or other MFT camera. This is use only with BMCC or BMPCC. When Speed Booster® is used with other MFT camera, it may cause damage on the camera.

List of lenses (have been tested by metabones) with support on EF-BMCC Speed Booster. 

Canon EF zooms

Canon 20-35mm3.5-4.5

Canon 28-80mm2.8-4L

Canon 70-200mm2.8L

Canon 24-70mm2.8_II

Canon 24-105mm4_L

Canon 70-200mm4_L

Canon 70-300mm4-5.6L

Canon 70-300mm4-5.6

Canon EF primes

Canon 50mm1.8

Canon 50mm1.4

Canon 85mm 1.2

Canon 100mm 2.8

Others

Sigma 18-200mm3.5-6.3

Zeiss 35mm2

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 BoosterTM They need to be modified before they can be safely used on Speed BoosterTM 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.

Optics designed by Caldwell Photographic in the USA (patent pending)

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

Why Metabones®?

Since its inception, Metabones has been designing and manufacturing lens adapters recognized among professionals and enthusiasts as leaders in design and workmanship.

Contrary to the popular trend of other factories using an aluminum ring painted black on the camera-body-side, we instead take no short-cut but use precision-machined brass with chromium plating on both the camera-body and the lens sides of our adapters, in order to ensure smooth mounting, great appearance, and durability. The lens side of the adapter features a strong leaf-spring structure, strengthening the adapter-lens connection and ensuring tightness of the lens in order to reduce wear and prevent focus errors and optical alignment issues from appearing.

Metabones uses matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens.

All Metabones Adapters follow this tradition of uncompromising precision, robust build quality and outstanding finish. Our new Smart AdapterTM series of products add industry-leading electronic interfacing technology from Canada, with true electronic control of the lens' aperture directly from the camera body.

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.

Our Smart AdapterTM  series adapters have the following additional features

True electronic integration of aperture diaphragm - let camera automatically choose aperture in P or S exposure modes, or dial in yourself on the camera body in A or M modes.

EXIF data such as lens identification, focal length and aperture.

Camera Mount

Micro Four Thirds

Lens Mount

Canon EF

Magnification

0.64x

Tripod Mounting Thread

1/4"-20 Female

In the Box

Metabones Canon EF to BMCC T Speed Booster (Black Matt)