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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.
PPZR-PA714 Zoom gear for Panasonic 7-14mm /F4.0€59.00 €48.76In stockPPZR-PA714 Zoom gear for Panasonic 7-14mm /F4.0
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Nauticam C1124-Z Zoom Gear for Canon EF 11-24mm f/4L USM€208.30 €172.15Backorder. Ready for shipment in 1 to 2 weeksNauticam C1124-Z Zoom Gear for Canon EF 11-24mm f/4L USM
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Nauticam Cinema System Gear Set for Canon EF-S 18-55mm STM€510.00 €421.49Replaced by a newer model. See link below...Nauticam Cinema System Gear Set For Canon EF-S 18-55mm STM
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Nauticam GF120-F Focus Gear for FUJINON GF120mmF4 R Macro€540.00 €446.28Special order product, non-cancelable, non-returnable !Nauticam GF120-F Focus Gear
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Nauticam GF3264-Z Zoom Gear for FUJINON GF32-64mmF4 R LM WR€540.00 €446.28Special order product, non-cancelable, non-returnable !Nauticam GF3264-Z Zoom Gear for FUJINON GF32-64mmF4 R LM WR
Learn More![Nauticam N85 to N120 34.7mm Port Adaptor with Knob [36064]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/n/a/na36064-1.jpg)
Nauticam N85 to N120 34.7mm Port Adaptor with Knob [36064]€466.50 €385.54Backorder. Ready for shipment in 1 to 2 weeksN85 to N120 34.7mm Port Adaptor for Metabones EF-MFT Mount T speed Booster Ultra 0.71X
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Sea&Sea zoom gear for NIKON AF-S FISHEYE 8-15MM [31191]€295.00 €243.80Backorder. Ready for shipment in 2-5 working daysSea&Sea zoom gear for NIKON AF-S FISHEYE 8-15MM [31191]
Learn More![Sea&Sea focus gear for CANON EF16-35MM F2.8L III USM [31190]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/s/s/ss31190.jpg)
Sea&Sea focus gear for CANON EF16-35MM F2.8L III USM [31190]€295.00 €243.80Backorder. Ready for shipment in 2-5 working daysSea&Sea focus gear for CANON EF16-35MM F2.8L III USM [31190]
Learn More![Sea&Sea zoom gear for CANON EF16-35MM F2.8L III USM [31189]](https://www.uwcamerastore.com/media/catalog/product/cache/585a9f53153ae04cde57614e2eac8117/s/s/ss31189.jpg)
Sea&Sea zoom gear for CANON EF16-35MM F2.8L III USM [31189]€295.00 €243.80Backorder. Ready for shipment in 2-5 working daysSea&Sea zoom gear for CANON EF16-35MM F2.8L III USM [31189]
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Nauticam SFE2470GM- Zoom Gear for Sony SEL2470GM FE 24-70€220.00 €181.82Backorder. Ready for shipment in 1 to 2 weeksZoom gears allow access to the mechanical zoom function of supported lenses in the underwater housing. 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,