Underwater Housing & Optics Configurator
Camera & Underwater Housing Compatibility Checker
Find the exact matching port (dome or flat) and required extension ring for your camera and lens combination.
Underwater housing and camera compatibility depends on the camera mount, proprietary port diameter, and lens physical length. To prevent corner vignetting, a macro lens requires a flat port with front threading, whereas a wide-angle lens demands a spherical dome matched with an extension ring aligned with the lens nodal point.
19 boîtiers hybrides (Sony, Canon, Nikon, OM System, Panasonic)6 marques de caissons (Nauticam, Ikelite, Sea&Sea, Isotta, Aquatica, Seafrogs)Calcul précis des bagues d extension
Port & Ring Matcher
Verify Housing, Port & Extension Ring Compatibility
Instantly find the right port (dome or flat) and required extension ring in 3 clicks.
Optical Match Found
Sony A7R V + FE 90mm f/2.8 Macro G OSS
Caisson Nauticam (Hong Kong)
Port price est.~260 €
Port Type
Nauticam Flat Port 74 pour FE 90mm Macro
Hublot Plat Macro
Réf. constructeur : N120 Flat Port 74
Extension Ring
Extension Ring 35
Required to align optical nodal point and prevent vignetting.
Depth & Housing Build
100 mètres
Corps de caisson en Aluminium anodise avec système de port propriétaire.
AquaExposure instructor tip : For macro, choose a flat port with a front M67 thread to screw wet diopters on the fly without opening the housing.
Detailed Housing Compatibility Configurator (Member Tier)
Select your camera, housing, and lens from 40+ models to retrieve the exact port reference and required extension rings.
Static Benchmark Table of Leading Camera / Housing Pairings
Overview of the most common underwater photography setups with their verified ports and extension rings.
| Boîtier | Caisson | Objectif | Type Hublot | Réf. Port | Bague d Extension | Profondeur Max |
|---|---|---|---|---|---|---|
| Sony A7R V | Nauticam (N120) | FE 90mm f/2.8 Macro | Hublot Plat Macro | #37126 | Extension Ring 20mm | 100 mètres |
| Sony A7 IV | Nauticam (N120) | FE 16-35mm f/2.8 GM II | Dôme Verre 230mm | #18812 | Extension Ring 50mm | 100 mètres |
| Canon EOS R5 | Ikelite (DL Dry Lock) | RF 100mm f/2.8L Macro | Hublot Plat DL | #75301 | Montage direct | 60 mètres |
| Canon EOS R5 | Nauticam (N120) | RF 15-35mm f/2.8L | Dôme Verre 230mm | #18812 | Extension Ring 60mm | 100 mètres |
| Nikon Z8 | Nauticam (N120) | Z MC 105mm f/2.8 VR | Hublot Plat Macro | #37126 | Extension Ring 30mm | 100 mètres |
| OM System OM-1 II | Ikelite (DLM) | M.Zuiko 60mm f/2.8 Macro | Hublot Plat DLM | #5516.15 | Montage direct | 60 mètres |
Optics & Buoyancy Precision
Master underwater refraction to elevate your framing
Underwater, refraction magnifies subjects by 33% behind a flat port and generates a curved virtual image behind a dome. In [formation AquaExposure](/lms), you learn to harness these physical phenomena in natural light, position your dome port at the exact nodal point, and stabilize your trim right above reefs without ever contacting marine life.
Frequently asked questions
How do I know which port to use with my underwater housing?+
The port depends on three factors: your camera body, your housing brand, and the lens you want to use underwater. Our tool cross-references these three elements to recommend the right port.
Is a Nauticam port compatible with an Ikelite housing?+
No, each manufacturer uses its own port system. Nauticam uses N120/N100, Ikelite uses DL (Dry Lock), and Sea&Sea uses its own standard. Ports are not interchangeable between brands.
What is the difference between a flat port and a dome?+
A flat port is used for macro lenses and certain zooms. A dome is necessary for wide-angle lenses to correct underwater distortion. The choice depends on your lens.
Do I need an extension ring?+
It depends on the camera/lens combination. Longer lenses require one or more extension rings to sit correctly inside the port. Our tool shows which rings are needed.
Can I use a Canon lens in a Nauticam Sony housing?+
No, the housing must match your camera body. A Nauticam housing for Sony only accepts Sony camera bodies. Lenses must be compatible with your camera's mount.