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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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AOI Zoom Gear for Vario-Tessar T* FE 16-35mm F4 ZA OSS€69.00 €57.02Backorder. Ready for shipment in 2 to 4 weeksAOI Zoom Gear for Vario-Tessar T* FE 16-35mm F4 ZA OSS
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AOI Zoom Gear for Sony FE PZ 16-35mm F4 G€69.00 €57.02Backorder. Ready for shipment in 2 to 4 weeksAOI Zoom Gear for Sony FE PZ 16-35mm F4 G
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AOI Zoom Gear for Sigma 14-24mm F2.8 DG DN Art Lens€69.00 €57.02Backorder. Ready for shipment in 2 to 4 weeksAOI Zoom Gear for Sigma 14-24mm F2.8 DG DN Art Lens
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AOI Focus Gear for Sony FE 14mm f/1.8 GM€69.00 €57.02Backorder. Ready for shipment in 2 to 4 weeksAOI Focus Gear for Sony FE 14mm f/1.8 GM
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AOI Zoom Gear for Sony FE 12-24mm F4 G€69.00 €57.02Backorder. Ready for shipment in 2 to 4 weeksAOI Zoom Gear for Sony FE 12-24mm F4 G
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AOI Focus Gear for Sigma 105mm F2.8 DG DN MACRO€69.00 €57.02Backorder. Ready for shipment in 2 to 4 weeksAOI Focus Gear for Sigma 105mm F2.8 DG DN MACRO
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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,