What is the difference between the Lens Controller (fka FocusPLUS PRO) and Focus Module?

Focus Module is an additional accessory for HeadPLUS and can only be controlled via a wired connection. Lens Controller can either be used as a standalone unit or paired with HeadPLUS, HeadPLUS PRO, HeadPLUS v2, and HeadPLUS v2 PRO wirelessly.

The Focus Module can only be controlled through edelkrone application via the focus wheel; however, Lens Controller enables one to position the lens focus simply by hand. The Lens Controller also has a new motor & gear mechanism that improves upon the original Focus Module's precision and is virtually silent when in operation.