Metabones Mount Adapter (Canon EF to Micro 4/3) SPEF-M43-BT4

Camera Mount MFT-Mount (Panasonic)
Lens Mount EF-Mount (Canon)
Suitable for
Panasonic MFT-Mount cameras (AG-AF100, GH4)
Blackmagic Pocket Cinema Camera
JVC GY-LS300 Camera
Panasonic GH4 Camera
Auto Focus Support Yes, for some lenses only
Aperture Control Electronic
Image Stabilization support Yes, only for some lenses
Manual Rings No Rings
Glass Yes, increases maximum aperture by 1 stop & Makes lens 0.71x wider
Material Brass with chromium plating