Product: Metabones Canon EF Lens to BMPCC4K T Speed Booster Ultra 0.71x, EF-BMPCC4K
Brand: Metabones
Color: Black
Compatible Cameras
 BlackMagic Pocket Cinema Camera 4K
 BlackMagic Pocket Cinema Camera HD (original ver.)
 BlackMagic Micro Cinema Camera 
 BlackMagic Micro Studio Camera 4K 
 BlackMagic Studio Camera 4K 
 BlackMagic Studio Camera

 Compatible Lenses
 Canon EF100-400mm f/4.5-5.6L IS II USM
 Canon EF100-400mm f/4.5-5.6L IS USM (I)
 Canon EF100mm f/2.8L IS USM Macro*
 Canon EF135mm f/2L USM
 Canon EF16-35mm f/2.8L II USM*
 Canon EF17-35mm f/2.8L USM
 Canon EF17-40mm f/4L USM
 Canon EF200mm f/2.8L II USM
 Canon EF24-105mm f/4L IS USM (I)
 Canon EF24-70mm f/2.8L II USM*
 Canon EF28-135mm f/3.5-5.6 IS USM
 Canon EF28-70mm f/3.5-4.5 II
 Canon EF28-80mm f/3.5-5.6 III USM
 Canon EF300mm f/2.8L IS II USM*
 Canon EF300mm f/4L IS USM
 Canon EF400mm f/5.6L USM
 Canon EF40mm f/2.8 STM*
 Canon EF50mm f/1.2L USM
 Canon EF50mm f/1.4 USM
 Canon EF50mm f/1.8 II
 Canon EF50mm f/1.8 STM*
 Canon EF70-200mm f/2.8L IS II USM*
 Canon EF70-200mm f/4L IS II USM*
 Canon EF70-200mm f/4L USM
 Canon EF70-300mm f/4-5.6L IS USM
 Canon EF8-15mm f/4L USM Fisheye*
 Canon EF85mm f/1.2L II USM
 Sigma 135mm f/1.8 DG HSM Art 017*
 Sigma 18-35mm f/1.8 DC HSM Art 013
 Sigma 24-105mm f/4 DG HSM Art 013
 SIgma 24-35mm f/2 DG HSM Art 015
 Sigma 30mm f/1.4 DC HSM Art 013
 Sigma 35mm f/1.4 DG HSM Art 012*
 Sigma 50-100mm f/1.8 DC HSM Art 016*
 Sigma 50-500mm f/4.5-6.3 DG OS HSM
 Sigma 50mm f/1.4 DG HSM (not Art)
 Tamron 10-24mm f/3.5-4.5 VC HLD B023
 Tamron 18-250mm f/3.5-6.3 A18
 Tamron 18-270mm f/3.5-6.3 B003
 Tamron 24-70mm f/2.8 VC USD A007 (G1)
 Tamron 28-300mm f/3.5-6.3 A06
 Tamron 35-150mm f/2.8-4 VC OSD A043
 Tamron 70-200mm F/2.8 Di VC USD A009
 Tokina 11-16mm f/2.8 AT-X PRO (I)
 Zeiss 18mm f/3.5 ZE

 Incompatible Lenses
 Tamron 70-300mm F/4-5.6 VC USD A005
Canon EF mount lens to Blackmagic Design cameras with M43 mount, specific for BMPCC4K. Increase maximum aperture by 1-stop. (with a maximum output aperture of f/0.9). Increase MTF. Makes lens 0.71x wider.
Patented 6-element/4-group optical design by Caldwell Photographic in the USA.Lens iris/aperture is set by the controls on the camera body. Smooth iris support with the latest Canon (2009+), Tamron (SP series 2013+) and Sigma (2016+) lens models. Image stabilization (IS) lens support.
Push autofocus if supported by camera. Cinema EOS lens support (CN-E 18-80mm T4.4 L), including AF (requires external 5V power via micro USB port), auto iris and servo zoom. Powered by camera body. With most lenses, no external power source required.
Flocking to reduce internal reflection. Rubber gasket protects M43 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. The tripod foot is tailor-made to match the exact height as the BMPCC4K camera body.

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