VariZoom EFC-U Universal Remote Electronic Focus Control with Universal Bracket & 95mm Focus Ring for Sony EX1 or EX3 Cameras.

The VariZoom EFC-U includes the universal focus ring that easily attaches to your Sony EX1 or EX3 camera. It works with VariZoom's DV Rods System: a high-quality rods system for DV/HDV cameras which enables you to attach matteboxes, focus control systems, wireless adapters and other accessories (Sold Separately).