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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.
Nauticam CR1435-Z Zoom Gear for Canon RF 14-35mm / 10-20mm€230.00 €190.08Backorder. Ready for shipment in 1 to 2 weeksCR1435-Z Zoom Gear for Canon RF 14-35mm f/4L IS USM
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Nauticam NZ105VR-F focus gear for Nikkor Z MC 105mm F/2.8 VR€220.00 €181.82Backorder. Ready for shipment in 1 to 2 weeksNZ105VR-F focus gear for Nikkor Z MC 105mm F/2.8 VR
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Nauticam Cinema Gear Set for Tokina AT-X 11-20MM F2.8 PRO DX€564.10 €466.20Special order product, non-cancelable, non-returnable !This zoom/focus gear set is for the Tokina AT-X 11-20mm F2.8 PRO DX with the Nauticam Cinema System.
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Isotta Zoom Ring for Olympus M.ZUIKO DIGITAL ED 7-14mm F2.8€106.00 €87.60Backorder. Ready for shipment in 1 to 2 weeksIsotta Zoom Ring for Olympus M.ZUIKO DIGITAL ED 7-14mm F2.8 Learn More
Ikelite zoom/focus gear 5509.26€28.75 €23.76In stockZoom / focus gear for selected lenses in Ikelite underwaterhousing.
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Isotta focus ring for AF-S VR Micro-Nikkor 105mm f2.8G IF-ED€183.00 €151.24Backorder. Ready for shipment in 1 to 2 weeksFocus gear for AF-S VR Micro-Nikkor 105mm f2.8G IF-ED
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Isotta zoom ring for Nikon AF-S NIKKOR 14-24mm f/2.8G ED€99.00 €81.82Backorder. Ready for shipment in 1 to 2 weeksZoom gear for Nikon AF-S NIKKOR 14-24mm f/2.8G ED
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Zoom Ring for Olympus M.ZUIKO DIGITAL ED 12-40mm F2.8 PRO€109.00 €90.08Backorder. Ready for shipment in 1 to 2 weeksGear to control the zoom of the Olympus lens in use inside the housing. Built in light but resistant plastic material to protect the lens from damage and featuring dual O-Ring seals to have a better grip. The gear's cogwheel is whole.
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Isotta Zoom Ring for Panasonic Lumix G X VARIO 12-35 mm€103.00 €85.12Backorder. Ready for shipment in 1 to 2 weeksIsotta Zoom Ring for Panasonic Lumix G X VARIO 12-35 mm Learn More
Isotta FocusRing Olympus ED 60mm F2.8 for EM5 MarkII-III€108.00 €89.26Backorder. Ready for shipment in 1 to 2 weeksIsotta FocusRing Olympus ED 60mm F2.8 for EM5 MarkII-III 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,