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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.
AOI Focus Gear I for M.ZUIKO DIGITAL ED 8mm F1.8 Fisheye PRO€82.50 €68.18Backorder. Ready for shipment in 2 to 4 weeksRing, required to manually use the focus function of your M.ZUIKO DIGITAL ED 8mm Fisheye lens when used in selected underwater housings.
AOI LG-OM1-8PRO
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AOI Zoom Gear 1 for M.ZUIKO DIGITAL ED 7-14mm F2.8 PRO€75.00 €61.98Backorder. Ready for shipment in 2 to 4 weeksZoom Gear- 1 for M.ZUIKO DIGITAL ED 7-14mm F2.8 PRO
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Ikelite zoom / focus gear 5509.48€46.00 €38.02In stockZoom/focus gear to control selected lenses manual when in use in an Ikelite underwaterhousing.
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Isotta Focus ring for Olympus M.ZUIKO DIGITAL ED 90mm F3.5 MACRO IS PRO€177.00 €146.28Backorder. Ready for shipment in 1 to 2 weeksIsotta Focus ring for Olympus M.ZUIKO DIGITAL ED 90mm F3.5 MACRO IS PRO
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Ikelite zoom/focus gear 5509.52€46.00 €38.02In stockGear to manually control the zoom/focus function of your lens when it's in use in your underwater housing.
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AOI Zoom Gear-1 for M.ZUIKO DIGITAL ED 9-18mm F4.0-5.6€72.50 €59.92In stockAOI Zoom Gear-1 for M.ZUIKO DIGITAL ED 9-18mm F4.0-5.6
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.
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Nauticam SFE2450-Z Zoom Gear for Sony FE 24-50mm f/2.8G€250.00 €206.61Backorder. Ready for shipment in 1 to 2 weeksNauticam SFE2450-Z Zoom Gear for Sony FE 24-50mm f/2.8G Lens (# 37178)
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Nauticam N100 XF1650-Z For Fujifilm XF 16-50mm f2.8-4.8 R LM€290.00 €239.67Backorder. Ready for shipment in 1 to 2 weeksNauticam N100 zoom gear XF1650-Z For Fujifilm XF 16-50mm f2.8-4.8 R LM WR lens (# 36480)
*The photo is for illustration purposes only.
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Nauticam SFE1635GMII F Focus Gear Sony FE 16-35mm F2.8 GM II€350.00 €289.26Backorder. Ready for shipment in 1 to 2 weeksNauticam SFE1635GMII F Focus Gear for Sony FE 16-35mm F2.8 GM II # 37176
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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,