AquaTech LP-TZ4 Lens Port for Canon 70-200mm f/4 V1 & II

The AquaTech LP-TZ 4 Flat Port is designed for use with the Canon 70-200mm f4 V1&II zoom lenses. The port features a ball drive and ring gear zoom control allowing access to the full focal length of the lens with no vignetting. Also included is a lens stabilizing ring for added support. AquaTech Lens Ports feature a threaded system that is interchangeable with all current model AquaTech Sport Housings. No tools are required to attach or remove the port.