This Aqua Tech LP-TZ II Flat Port is for the Canon 70-200mm f/2.8 IS II lens. The port features a ball drive and ring gear zoom control allowing access to the full focal length of the lens with no vignetting.
Aqua Tech lens ports feature a threaded system that is interchangeable with all current model Aqua Tech sport housings. No tools are required to attach or remove the port.
LP-TZ II Flat Port for Canon 70-200mm f/2.8 IS II Lens