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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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Sea&Sea Zoom Gear Sigma 10-20 mm Ex DC/HSM [31142]€119.00 €98.35In stockSea&Sea zoom gear Sigma 10-20 #SS31142 Learn More
Sea&Sea zoom gear for OLYMPUS 12-50mm F3.5-3.6 EZ€335.00 €276.86In stockSea&Sea zoom gear voor OLYMPUS 12-50mm F3.5-3.6 EZ Learn More![Sea&Sea Focus Gear 105 mm VR lens [31133]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/s/s/ss31133.jpg)
Sea&Sea Focus Gear 105 mm VR lens [31133]€395.00 €326.45In stockSea&Sea Focus Gear 105 mm VR lens [31133] Learn More
Sea&Sea Focus Gear for Canon 60 mm F2.8 [31126]€165.00 €136.36In stockSea&Sea focus Gear for Canon 60 mm F2.8 [31126] Learn More
Sea&Sea Zoom Gear for Nikkor 12-24mm [31107]€129.00 €106.61In stockSea&Sea Zoom Gear for Nikkor 12-24mm [31107] Learn More![Sea&Sea Focus Gear Sigma Macro 105mm F2.8 EX DG [31128]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/s/s/ss31128.jpg)
Sea&Sea Focus Gear Sigma Macro 105mm F2.8 EX DG [31128]Special Price €169.00 €139.67 Regular Price €175.00In stockSea&Sea Focus Gear Sigma Macro 105mm F2.8 EX DG [31128] Learn More
Sea&Sea Zoom gear Nikkor 18-70 DX [31121]Special Price €99.00 €81.82 Regular Price €129.00In stockSea&Sea zoom gear Nikkor AFS ED 18-70, Canon 18-55 #SS31121 Learn More![Sea&Sea zoom gear for NIKON AF-S 18-55 VR #SS31148] – Image 1](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/3/1/31148_2-600x600.jpg)
Sea&Sea zoom gear for NIKON AF-S 18-55 VR #SS31148]€139.00 €114.88Backorder. Ready for shipment in 1 to 2 weeksSea&Sea zoom gear for NIKON AF-S 18-55 VR #31148] Learn More
Sea&Sea Zoom Gear Nikkor 20-40mm F2.8EX [31104]€129.00 €106.61In stockSea&Sea Zoom Gear voor de Nikkor 20-40mm F2.8EX lens Learn More
Sea&Sea Focus Gear Nikkor/ Sigma 14mm F2.8EX [31105]€129.00 €106.61In stockSea&Sea Focus Gear Nikkor/ Sigma 14mm F2.8EX [31105] 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,