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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.
![Nauticam 8.5 inch acrylic dome port [18802]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/1/8/18802-1.jpg)
Nauticam 8.5 inch acrylic dome port [18802]€770.00 €636.36In stockNauticam 8,5" Dome port with shade and neoprene cover: high quality Dome port for Nauticam DSLR underwater housings.
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Nauticam FCP N120/N100 Fisheye Conversion Port 170 deg.€5,900.00 €4,876.03In stockNauticam Fisheye conversion port that gives you a gigantic viewing angle of no less than 170° with compatible 28mm lenses and selected underwater housings. Float collar is integrated.
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Ikelite DL compact 8"dome port #75344€454.25 €375.41In stockIkelite DL compact 8"dome port #75344 Learn More
Isotta Dome Port 8" polycarbonate -B102 (AS811)€1,136.00 €938.84In stockSpherical Dome Port of 8" for Mirrorless in black anodized aluminum and polycarbonate. To be used directly mounted on the housing or with extension rings with 102mm bayonet.
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Nauticam 0.57x Wide Angle Conversion Port - 2 (WACP-2)€8,700.00 €7,190.08In stockThis port is a 0.57X Wide Angle Conversion Port. This WACP-2 is designed and optimized to work with 14mm lenses and produces an unparralleled 140° field of view while maintaining full zoom-through optical capability.
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Nauticam N100 0.36x Wide Angle Conversion Port Compact WACPC€2,600.00 €2,148.76Backorder. Ready for shipment in 1 to 2 weeksNauticam is now excited to release the next iteration of WACP, the WACP-C. The Wide Angle Conversion Port Compact (WACP-C) is a fraction of the weight and size when compared to the WACP-1 and WACP-2.
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Gates SP80-10 10" GLASS Dome port [90-25-102B]€6,912.00 €5,712.40Special order product, non-cancelable, non-returnable !Gates SP80-10 10" GLASS Dome port [90-25-102B] Learn More![Nauticam 230mm optical glass fisheye dome port II [18812]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/p/_/p_378.jpg)
Nauticam 230mm optical glass fisheye dome port II [18812]€2,300.00 €1,900.83Backorder. Ready for shipment in 1 to 2 weeksNauticam 230mm glass fisheye dome port [18812] - Nauticam optical glass dome ports are finely grounded to the highest standard of precision and represents the state of the art manufactering and optical technology.
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Ikelite DL 8 Inch dome port #75340€569.25 €470.45In stockIkelite DL 8 Inch dome port #75340 Learn More
Ports for macro and wide-angle underwater photography
Ports are an essential part of modular underwater housings for mirrorless and DSLR cameras, where the front of the housing is interchangeable. The type of port you need depends on the lens you use and your shooting style.
A macro lens typically requires a flat port to achieve maximum magnification, while wide-angle and fisheye lenses use a dome port to maintain field of view and reduce distortion. If you're new to underwater ports, read our guide on understanding underwater port systems.
Flat ports and dome ports
- A flat port is used for macro photography and increases magnification for close-up subjects.
- Dome ports are designed for wide-angle and fisheye lenses and help maintain image quality underwater.
Port charts for compatibility
Port charts help you match the correct port, extension ring and housing for your specific lens. Because each brand uses its own system, there are separate port charts available for different manufacturers.
- Flat ports for macro lenses
- Dome ports for wide-angle setups
- Extension rings for correct positioning
Zoom and focus gears
Some lenses require gears to control zoom or manual focus inside the housing. These are listed in the port charts and are essential for full control underwater. Visit our gears category to complete your setup.
Advanced port systems
Advanced solutions such as WACP ports combine optics and port in one system for high-end image quality. These are mainly used in professional setups.
Wet lens vs dome port
A wet lens offers flexibility by allowing you to switch between macro and wide-angle underwater. A dome port is a fixed solution for wide-angle photography. Read more in our guide on wet lenses vs dome ports.
Need help choosing the right port?
Not sure which port suits your lens and housing? Our team is happy to help you find the right setup.
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.
Related articles about underwater ports for underwater housings
- Posted: March 17, 2026Categories: Underwater HousingsRead more »
- Posted: January 06, 2025Categories: Underwater Housings
Read more »When choosing the right dome port for your camera and lenses, there are many factors to consider. Is a glass dome better than an acrylic dome? What size dome is best for a specific lens? In this blog, we’ll answer these questions and explain how to use port charts to make an informed decision.
- Posted: November 28, 2024Categories: Underwater Housings
Read more »Have you ever taken underwater photos with a dome port and noticed something strange? The center of your image is crystal clear, but the edges look soft and blurry. What causes this? More importantly, how can you fix it? Don’t worry, we’ll keep things simple and informative. This guide will help you take your underwater photography to the next level.