Metabones Canon EF to BMPCC4K 0.71x MB_SPEF-M43-BT8

The Metabones Canon EF to BMPCC4K Speed Booster adapters are specifically designed for Blackmagic Design Pocket Cinema Camera 4K (BMPCC4K) and allow for the use of Canon EF mount lenses on cameras with a M43 mount. These adapters increase the maximum aperture by 1-stop, making it possible to achieve a maximum output aperture of f/0.9. They also improve the lens MTF (Modulation Transfer Function) and make the lens 0.71x wider. The patented 6-element/4-group optical design by Caldwell Photographic in the USA ensures high quality optics.

The electronic features of these adapters allow for smooth iris control using the camera bodys controls, as well as support for lens image stabilization and push autofocus if the camera supports it. They are also compatible with Cinema EOS lenses, including AF (with external 5V power), auto iris, and servo zoom. The adapters are powered by the camera body and do not require an external power source. The mechanical features include flocking to reduce internal reflection, a rubber gasket to protect the M43 mount connection, and a detachable tripod foot that is compatible with Arca Swiss Style ball heads or quick release plates.