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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.
Isotta zoom ring for Nikon AF-S NIKKOR 8-15mm f/3.5-4.5ED€128.00 €105.79Backorder. Ready for shipment in 1 to 2 weeksGear to control the zoom of your AF-S NIKKOR 8-15mm f/3.5-4.5E ED lens when it's in use in an Isotta underwater housing
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Isotta Zoom Gear: Nikon AF-S 16-35mm f/4G ED VR Lens€113.00 €93.39Backorder. Ready for shipment in 1 to 2 weeksGear to control the zoom of your AF-S NIKKOR 16-35mm f/4G ED VR lens when it's in use in an Isotta underwater housing
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Isotta focus ring for AF-S Micro-Nikkor 60mm f2.8G ED€139.00 €114.88Backorder. Ready for shipment in 1 to 2 weeksFocus ring for AF-S Micro-Nikkor 60mm f2.8G ED
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Nauticam CR2450-Z Zoom Gear voor Canon RF 24-50mm F4.5-6.3IS€200.00 €165.29Backorder. Ready for shipment in 1 to 2 weeksZoom Gear for Canon RF 24-50mm F4.5-6.3 IS STM lens
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Nauticam SFE2070-Z Zoom Gear for Sony FE 20-70 F4 G€190.00 €157.02Backorder. Ready for shipment in 1 to 2 weeksGear to control the zoom function of your Sony FE 20-70 F4 G lens when in use in a Nauticam underwater housing.
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AOI Zoom ring for M.ZUIKO DIGITAL ED 12-45mm F4.0 PRO€79.00 €65.29In stockNewest model (type1) Zoom gear for M.ZUIKO DIGITAL ED 12-45mm F4.0 PRO
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Isotta focus gear for AF DX Fisheye-Nikkor 10.5mm f/2.8G ED€103.00 €85.12Backorder. Ready for shipment in 1 to 2 weeksGear to control the focus function of your Nikkor 10.5mm lens when it's in use in the Isotta underwater housing.
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Nauticam Cinema Gear Set for Canon RF 24-50mm f/4.5-6.3 IS€590.00 €487.60No delivery information availableGear set to control the Canon RF 24-50mm f/4.5-6.3 IS STM Lens when it's in use in the Nauticam underwater housing
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Ikelite zoom/focus gear 5509.36€40.25 €33.26In stockZoom/focus gear for selected lenses in selected housings.
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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,