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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 SE1635-Z Zoom Gear for Sony Vario FE 16-35mm F4 ZA [37145]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/3/7/37145.jpg)
Nauticam NZ2450-Z Zoom Gear for NIKKOR Z 24-50mm f/4-6.3€200.00 €165.29Backorder. Ready for shipment in 1 to 2 weeks
Nauticam N120 Port Adaptor for Laowa 24mm f/14 2x Macro P.€830.00 €685.95Special order product, non-cancelable, non-returnable !
![Nauticam SFE1635GM-Z Zoom Gear for Sony SEL1635GM FE 16-35 [37155]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/n/a/na37155.jpg)
![Nauticam SE2870-Z zoom gear for Sony FE 28-70mm F3.5-5.6 OSS [37141]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/3/7/37141.jpg)
Nauticam SE2870-Z zoom gear for Sony FE 28-70mm F3.5-5.6 OSS€290.00 €239.67Backorder. Ready for shipment in 1 to 2 weeks![Nauticam SE2470-Z Zoom gear for Sony 24-70mm F4 ZA OSS [37149]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/3/7/37149.jpg)
Nauticam SE2470-Z Zoom gear for Sony 24-70mm F4 ZA OSS€241.00 €199.17Replaced by a newer model. See link below...![Nauticam SE90-F Focus Gear for Sony FE 90mm F2.8 Macro G [37147]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/3/7/37147.jpg)
Nauticam O714-Z for Olympus M.ZUIKO 7-14mm f/2.8 [36054]€210.00 €173.55Backorder. Ready for shipment in 1 to 2 weeks![Nauticam SE1635-F Focus Gear Sony Vario-Tessar T* FE 16-35 {37146]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/3/7/37146.jpg)
Nauticam P45-F Leica DG Macro Elmarit 45mm focus gear[36145]€170.00 €140.50Backorder. Ready for shipment in 1 to 2 weeks
Nauticam Cinema Gear Set for Canon RF 24-70mm F/2.8L IS USM€580.00 €479.34Backorder. Ready for shipment in 1 to 2 weeks
Nauticam PL100-F Focus Gear for Panasonic S 100mm f/2.8€240.00 €198.35Backorder. Ready for shipment in 1 to 2 weeks
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,