Viltrox EF-M2 II Speed Booster - Adapter

The Viltrox EF-M2 II is an electronic focal reducer adapter for using Canon EF lenses on Micro Four Thirds cameras. It reduces the crop factor, restores a wider field of view, and increases effective light transmission for more flexible lens use on compact cinema bodies.

It features a 0.71x focal reduction, provides approximately +1 stop of light, and supports autofocus, auto exposure, image stabilization, EXIF transfer, and camera-controlled aperture through electronic contacts. Firmware updates are handled via micro USB.

Useful for adapting EF stills or cine lenses to MFT systems such as the BMPCC 4K, Panasonic GH series, and other Micro Four Thirds camera bodies when a wider image and faster effective aperture are required.