The MTF Services Ltd Canon EF to SONY PMW-F3 Adapter is a mechanical adapter with no electronics. It lets you fit any Canon EF mount lens to Sony's PMW-F3 camera. Its addition introduces a magnification of 1.5x with full frame lenses.
(The aperture on your Canon lens must be set before mounting the adapter.)
MTF Services Ltd
Canon EF to SONY PMW-F3 Adapter