This flat port is designed only to fit the Canon 17-40mm f/4L lens for SPL housings with the new-style port design. Basic focus or zoom control is included. Other lenses are not guaranteed to work and may cause the housing to leak or be damaged. We rent the lens at the link below if you do not already own it.
This port will fit the following housings and any SPL Waterhousing with the new-style port design.
- Port. Port cover.