The Zacuto Zoom / Focus Control Y Cable for Canon Compact Servo allows you to connect both a focus and zoom demand to Canon compact-servo lenses. Lenses like the Canon CN-E Compact-Servo 18-80mm T4.4 L IS EF and Canon CN-E Compact-Servo 70-200mm T4.4 L IS EF only feature a single remote port, so this Y cable can connect both demands found in the Canon Lens Control Kit for Digital ENG/EFP Lenses for simultaneous zoom and focus control.