Canon EF Lens to Micro Four Thirds Smart Adapter
Build-in electronics to control lens aperture.
The lens aperture is set by the controls on the MFT camera/camcorder body e.g. GH4.
Powered by camera body. no external power source required. (also accept 3rd party external power supply via MicroUSB socket)
High performance 32-bit processor and efficient switched-mode power supply.
The tripod foot is detachable and compatible with Arca Swiss, Markins and Photo Clam ball heads.