EOStec

Hi all, I'm new to the EOSHD site and to the forum. I'm the author of the [url="http://canon-eos.serveblog.net"]Canon EOS Technoclopedia[/url], a technical database of everything related to Canon EF. I came to EOSHD for some reviews of the BMD Cinema Camera. I can't seem to find some detail: For the lens mount the specs claim electronic aperture control. That's it. Fine so far. But the LANC is also said to control the focus. So where is the hint here? Does the camera's EF mount support electronic focus control via LANC controllers or do I get something wrong there? Thanks for any advice. Greg