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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.
Gears
Gears are control rings that allow manual focus or zoom operation of lenses inside underwater housings. They are essential for precise handling during a dive.
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Nauticam SN1770OSC-Z for Sigma 17-70mm F2.8-4 DC Mac.[19140]€208.00 €171.90In stockNauticam SN1770OSC-Z for Sigma 17-70mm F2.8-4 DC Mac.[19140] Learn More
Nauticam C815-F focus gear for Canon EF 8-15mm f/4L Fisheye€340.00 €280.99Backorder. Ready for shipment in 1 to 2 weeksNauticam C815-F focus gear for Canon EF 8-15mm f/4L Fisheye Learn More![Nauticam C2470f4-Z Zoom gear for Canon EF 24-70 f/4L IS USM [19544]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/1/9/19544.jpg)
Nauticam C2470f4-Z Zoom gear for Canon EF 24-70 f/4L IS USM€240.00 €198.35Backorder. Ready for shipment in 1 to 2 weeksNauticam C2470f4-Z Zoom gear for Canon EF 24-70 f/4L IS USM Learn More
Nauticam C24105-Z Z00m gear for Canon EF 24-105mm f4L IS USM€240.00 €198.35Backorder. Ready for shipment in 1 to 2 weeksNauticam C24105-Z Z00m gear for Canon EF 24-105mm f4L IS USM Learn More![Nauticam SC15-F Focus gear for Sigma 15mm F2.8 EX DG [19546]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/1/9/19546.jpg)
Nauticam SC15-F Focus gear for Sigma 15mm F2.8 EX DG€190.00 €157.02Replaced by a newer model. See link below...Nauticam SC15-F Focus gear for Sigma 15mm F2.8 EX DG Learn More![Nauticam N1855VRII-Z zoom gear for Nikon 18-55mm f/3.5-5.6G [19144]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/1/9/19144.jpg)
Nauticam N1855VRII-Z zoom gear for Nikon 18-55mm f/3.5-5.6G€208.00 €171.90Replaced by a newer model. See link below...Nauticam N1855VRII-Z zoom gear for Nikon 18-55mm f/3.5-5.6G Learn More
Nauticam C1635f4-Z Zoom gear for Canon EF 16-35mm f/4L IS€240.00 €198.35Backorder. Ready for shipment in 1 to 2 weeksNauticam C1635f4-Z Zoom gear for Canon EF 16-35mm f/4L IS Learn More
Nauticam SE1670-Z Zoom gear for Sony Vario-Tessar T* E 16-70€190.00 €157.02Backorder. Ready for shipment in 1 to 2 weeksSA1670-Z Zoom gear for Sony Vario-Tessar T* E 16-70 lens
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Nauticam O714-F for Olympus M.Zuiko Digital ED 7-14mm f/2.8€210.00 €173.55Backorder. Ready for shipment in 1 to 2 weeksNauticam O714-F for Olympus M.Zuiko Digital ED 7-14mm f/2.8 [36055] Learn More
Nauticam O8-F for Olympus M.Zuiko Digital ED 8mm 1:1.8€200.00 €165.29Backorder. Ready for shipment in 1 to 2 weeksNauticam O8-F for Olympus M.Zuiko Digital ED 8mm [36056] Learn More
Frequently asked questions about gears for underwater housings
What is a gear for an underwater housing?
A gear is a ring placed around a lens that allows you to control focus or zoom through the external controls of an underwater housing.
Do I need a gear for every lens?
Not always. Some lenses can be used without a gear, but for manual focus or zoom control, a compatible gear is required.
What is the difference between a focus gear and a zoom gear?
A focus gear is used to manually adjust focus, while a zoom gear allows you to change focal length on zoom lenses.
How do I know which gear I need for my underwater housing?
You can use port charts to find the correct gear for your specific lens, port and underwater housing.
Are gears brand specific?
Yes, gears are designed for specific lenses and underwater housing systems. Always check compatibility before choosing a gear.
Related articles about gears for underwater housings
- Posted: March 17, 2026Categories: Underwater HousingsRead more »
- Posted: August 26, 2024Categories: Underwater Housings
Read more »AOI underwater housings are compact, lightweight, and ergonomic. Depending on the lens you want to use with your camera, you'll need a matching AOI port, gear and AOI extension ring. AOI has created port charts where you can look up exactly which items you need to start underwater photography with your lens in the underwater housing.
- Posted: March 06, 2024Categories: Underwater Housings
Read more »Many Nauticam housings provide interchangeable ports, enabling the use of various lenses. However, different lenses may demand distinct ports and extension rings to maintain or correct for underwater optics. Certain lenses permit access to zoom and manual focus functions while inside the housing,