I was under the impression that LANC was a "standard" and that a LANC controller could control any camera. At least that's been my experience. I bought a LANC controller for my old Canon XL2, and used it on at least 3-4 other cameras, and it always worked for zoom and start/stop. I ask this because while I know the little Sony CX cam is everybody's favorite airborne camcorder, I happen to own the Canon XF100, which is a terrific camera. It is only slightly bigger and heavier than the Sony, but it's still quite a bit lighter than my 5D Mark III bodies with a decent lens. Anyway, I'd love to be able to at least control the zoom, and I'm willing to sacrifice one of the LANC cables and/or controllers to do it. But what I don't know is the basics of how to commandeer a switch and a servo (?) on my CS8/MK/mx-20 rig. All I want is zoom in/out. Shutter and focus are unnecessary. Your thoughts? Obviously, I'd love to share my process and the results, in case any of you are in a similar situation. Cheers!