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 Flat Port FLP-02P (plastic) for PEN mount housing€229.00 €189.26In stockFlat Port for Olympus Pen Mount Housing (For ED 60mm Macro Lens)
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AOI FLP-08 flat port with OM-D mount for 90mm Macro IS PRO€329.00 €271.90In stockOM-D mount port for OM SYSTEM M.ZUIKO DIGITAL ED 90mm F3.5 Macro IS PRO lens.
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AOI FLP-03P Flat Port Plastic for Olympus OM-D Housing€285.00 €235.54In stockFlat port for Olympus ED 60mm F2.8 Macro or ED 12-50mm F3.5-6.3 EZ lens.
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AOI FLP-06 Flat Port for 14-42EZ for Olympus PEN Housing€199.00 €164.46Backorder. Ready for shipment in 1 to 2 weeksFlat plastic port for olympus PEN housing / Olympus M.Zuiko Digital ED 14-42mm EZ
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AOI FLP-07 Flat Port for 14-42EZ for Olympus OM-D Housing€259.00 €214.05In stockPlastic Flat Port for Olympus OM-D Mount Housing (without the AD-LP-01 adapter it's also compatible with PEN housings).
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AOI DLP-04P Acrylic Semi Dome Port for Olympus PEN HousingSpecial Price €319.00 €263.64 Regular Price €335.00In stockThe AOI DLP-04P underwater port for the Olympus PEN series housings allow you to expand your system with the addition of new lenses. The DLP-04P semi-dome lens port is designed for several Olympus micro 4/3 wide angle lenses such as the M. Zuiko 9-18, 12-50 and 14-42 lens.
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AOI DLP-03P Glass Dome Port polycarbonate body (Olympus PEN)€389.00 €321.49Backorder. Ready for shipment in 1 to 2 weeks4” Glass Semi Dome Port with polycarbonate body for Olympus PEN Mount Housing
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AOI DLP-10 4" Acrylic Semi Dome Port for Olympus OM-D case€345.00 €285.12In stockHigh quality lightweight acrylic 4" Semi Dome port for Olympus underwater housings with OM-D port mount. Compatible with multiple lenses, like the 9-18, 14-42, 12-50 and with the optional 22mm extension ring even with the Olympus 12-40 Pro. Learn More
AOI Extension Ring 22mm OMD port to OMD housing€209.00 €172.73Backorder. Ready for shipment in 1 to 2 weeksAOI Extension Ring 22mm OMD port to OMD housing Learn More
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.



