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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.
Sea&Sea Standard Flat Port [56101]€319.00 €263.64In stockSea&Sea Standaard flat poort #SS56101 Learn More
Olympus PPO-E05 portSpecial Price €259.00 €214.05 Regular Price €458.52In stockHigh quality aluminum & glass lensport.
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Olympus PPO-E04 portSpecial Price €999.00 €825.62 Regular Price €1,098.99In stockOlympus PPO-E04 port Learn More
Isotta Extension Ring 60 mm -B120 (AS780)€218.00 €180.17Backorder. Ready for shipment in 1 to 2 weeks60mm. Extension ring with 102 mm bayonet to increase the lenght of the housing's port by the mentioned measure and allow the use of different lenses.
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Isotta Extension Ring 70 mm -B120 (AS781)€230.00 €190.08In stock70mm. Extension ring with 120 mm bayonet to increase the lenght of the housing's port by the mentioned measure and allow the use of different lenses.
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Isotta Extension Ring 90 mm -B120 (AS851)€254.00 €209.92Backorder. Ready for shipment in 1 to 2 weeks90mm. Extension ring with 102 mm bayonet to increase the lenght of the housing's port by the mentioned measure and allow the use of different lenses.
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Isotta Dome Port 6" polycarbonate -B102 (AS807)€678.00 €560.33In stockSpherical Dome Port of 6" for Reflex 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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Isotta Extension Ring 15 mm -B102 (AS751)€144.00 €119.01In stock15mm. Extension ring with 102 mm bayonet to increase the lenght of the housing's port by the mentioned measure and allow the use of different lenses.
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Nauticam N100 to N120 35.5mm Port Adaptor II€540.00 €446.28In stockNauticam N100 to N120 35.5mm Port Adaptor II (for NA-A7IV)
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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.