The VariZoom VZ-EXTL50 LANC Extension Cable – 50ft is an optional accessory for the Libec ZFC-5HD Remote Zoom Control.
Working with a long arm jib and the zoom control cable won’t reach? Sounds like you need this cable right here. It’s 50 feet long, and it has a 2.5mm male and 2.5mm female connections, offering compatibility with any zoom control with the same.