Canon EFEOSM

The Mount Adapter EF-EOS M lets Canon EF and EF-S lenses mount on EOS M-series mirrorless cameras. It bridges the longer EF flange distance to the shorter EF-M mount without any optical elements in the path, so the lens keeps its native focal length, angle of view, and image quality.

Full electronic contacts carry autofocus, image stabilization, and aperture control between camera and lens, and EXIF data is passed through to the file. The metal bayonet on both sides gives a secure, repeatable connection, opening the full EF and EF-S catalog to an EOS M body.