Choosing the right port system for your underwater housing is essential for achieving sharp, distortion-free images underwater. Whether you shoot wide-angle or macro, your port setup directly affects image quality, field of view, and usability.
Ports
Choose the right underwater port for your underwater housing and macro or wide-angle lens setup. From flat ports to underwater dome ports, we offer solutions for all major waterproof housings and lenses. Check the port charts to find the right port, gear and extension ring for your lens and waterproof case.
AOI FLP-06 Flat Port for 14-42EZ for Olympus PEN Housing€199.00 €164.46Backorder. Ready for shipment in 1 to 2 weeks
AOI DLP-04P Acrylic Semi Dome Port for Olympus PEN HousingSpecial Price €319.00 €263.64 Regular Price €335.00In stock
AOI DLP-03P Glass Dome Port polycarbonate body (Olympus PEN)€389.00 €321.49Backorder. Ready for shipment in 1 to 2 weeks
AOI Extension Ring 22mm OMD port to OMD housing€209.00 €172.73Backorder. Ready for shipment in 1 to 2 weeks
AOI Extension Ring 24mm PEN port to PEN housingSpecial Price €185.00 €152.89 Regular Price €195.00In stock
AOI DLP-07 8" Glass Dome Port for Olympus OM-D Housing€1,385.00 €1,144.63Special order product, non-cancelable, non-returnable !
AOI DLP-08 8" Acrylic Dome Port for Olympus OM-D Housing€718.99 €594.21Special order product, non-cancelable, non-returnable !
AOI DLP-02 4" Acrylic Dome Port for Olympus OM-D Mount€599.00 €495.04Backorder. Ready for shipment in 1 to 2 weeks
AOI DLP-09 4" Glass Semi Dome Port for Olympus OM-D case€475.00 €392.56Backorder. Ready for shipment in 1 to 2 weeks
AOI DLP-11-OD 8” Glass Dome Port for OM-D Mount Housing€1,399.00 €1,156.20Backorder. Ready for shipment in 1 to 2 weeks
AOI DLP-11-PN 8” Glass Dome Port for PEN Mount Housing€1,399.00 €1,156.20Backorder. Ready for shipment in 2 to 4 weeks
AOI DLP-102 acrylic dome port 220 (AX port system)€615.00 €508.26Backorder. Ready for shipment in 1 to 2 weeks
Frequently asked questions about underwater ports
What is the difference between a dome port and a flat port?
A dome port is a curved (spherical) port used for wide-angle lenses. It helps maintain the field of view underwater while reducing distortion. A flat port is used for macro photography and increases magnification for close-up subjects.
Do I always need an extension ring for my underwater port?
Not always. An extension ring is only needed when your lens must be positioned correctly inside the port. This depends on your lens and underwater housing setup, and can be checked in the port charts.
What is a WACP conversion port?
A WACP (Wet Optics Conversion Port) is an advanced underwater port that combines high-quality optics with a dedicated port design. It delivers superior image quality, minimal distortion and excellent sharpness underwater.
Can I use a wet lens instead of a dome port?
Yes, in some setups you can use a wet lens on selected flat ports instead of a dome port. This allows you to switch between macro and wide-angle underwater, depending on your setup and compatibility.
How do I know which port fits my lens and housing?
You can use the port charts to find the correct combination of port, extension ring and gears for your specific lens and underwater housing.



