The Optitek Canon ProLock-i is a video lens adapter and Mark II version that adapts Canon EF lens to Sony FZ camcorders like the PMW-F5 CineAlta and PMW-F55 CineAlta 4K. Key features include:
- Electrical Contacts. Enables powered control over the iris in 1/3rd stop increments via keys on the mount, as well as Image Stabilization and autofocus.
- Power Drawn From Camera. Rather than requiring an additional power source, the ProLock-i draws power from the camera mount. No additional cable is required.
- Clamping Lock Ring. The Prolock-i also features a PL-style clamping lock ring on the Canon EF mount, assuring that the lens will not shift in the lens mount.