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.
Sea&Sea Optical Dome Port [30104]Special Price €1,295.00 €1,070.25 Regular Price €1,936.73In stockThis AR multi-coated glass dome port is ideal for wide-angle photography with a digital SLR camera. It comes with a port case and a dome port cover.
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Sea&Sea Compact Macro Port 79 [56251]€289.00 €238.84In stockSea&Sea Compact Macro Port 79 [56251] Learn More
Sea&Sea Compact Macro Port M (67) [56221]Special Price €299.00 €247.11 Regular Price €375.00In stockCompact Macro Port M (67)
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Sea&Sea NX compact wide port L [30103]Special Price €379.00 €313.22 Regular Price €419.00In stockThe NX compact wide port (wide port) can be used with the AF-S DX Zoom Nikkor ED 12-24mm F4G (IF), 18-55mm F3.5-5.6G, 18-55mm F3.5-5.6GI, Nikkor 18-55mm F3.5-5.6G VR and 18-70mm F/3.5-4.5G (IF), Canon EF-S 18-55mm F3.5-5.6 IS and II USM, Sigma 18-50mm F2.8 EX DC macro / HSM lenses. Learn More
Sea&Sea Compact Macro Port 111 #SS56261Special Price €299.00 €247.11 Regular Price €399.00In stockSea&Sea Compact Macro Port 111 #SS56261 Learn More
Sea&Sea RDX Standard Port [30107]€379.00 €313.22In stockThis Sea&Sea RDX Standard Flat Port, can used for the most standard zoom lenses in RDX housings.
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Sea&Sea Standard Flat Port [56101]€319.00 €263.64In stockSea&Sea Standaard flat poort #SS56101 Learn More
Sea&Sea CX Compact dome port [46100]€409.00 €338.02Backorder. Ready for shipment in 2-5 working daysSea&Sea CX Compact dome port [46100] Learn More
Sea&Sea MDX port bajonet ring€68.99 €57.02Special order product, non-cancelable, non-returnable !Sea&Sea MDX port bajonet ring 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.

![Sea&Sea Optical Dome Port [30104] Sea&Sea Optical Dome Port [30104]](https://www.uwcamerastore.com/media/amasty/amlabel/1clearance_2.png)


