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Nauticam sets a high bar of excellence in their underwater housings. The Nauticam A7R IV underwater housing is a top quality aluminum underwater housing designed with excellent ergonomics. This housing is smaller than a standard dSLR housing, has an excellent port lock system, and supports a huge variety of lenses. The bulkheads support different combinations of sync cords, external monitors and/or their highly recommended vacuum valve system.
Most people who use strobes with this housing end up getting the flash trigger, for faster firing through fiber optic cables. If you are shooting video, I'd recommend two underwater video lights. Almost everyone end up getting the optional vacuum valve. Last, but not least, keep in mind that ports are optional - you'll need at least one flat port or one dome port, depending on which lens you want to use.
HDMI 2.0 Support
The NA-A7RIV housing features the larger opening, m24 bulkhead which allows you to use Nauticam HDMI 2.0 Cables to connect to your recorders such as Atomos Ninja V
Nauticam has a reputation of providing excellent ergonomics on all of their housings, and the housing for the Sony A7R IV lives up to their name. Buttons, levers and dials are easily accessible and very intuitively located. Even while wearing thick gloves the housing controls are very easy to operate.
Patented Port Locking System
The locking lever has become a signature of the Nauticam brand. No twisting or threading action is required to mount a port, and it locks securely in place with this lever.
Integrated Vacuum Monitoring and Leak Detection
Combined with an optional vacuum valve (PN 25624), this monitoring system provides constant updates on the water tight and safe-to-dive status of the housing via a simple color-coded LED lighting system. Green means go, safe to dive!
Of course, you can use Canon lenses with the metabones adapter, such as the Canon 8-15mm fisheye or the Canon 16-35mm lenses. Nikonos lenses are also supported with the optional nikonos adapter. Focus gears are available for manual focus for some lenses.
Read our guide to the best Sony full frame lenses for underwater
For other options, see our other recommended strobes see our Buyer's Guide for Best Underwater Strobes
For other options, see our other recommended strobes see our list of best underwater video lights.
Learn more about the A7R IV features and why we love it for underwater photography in our full Sony A7R IV Review.
Jellyfish on a blackwater dive photographed with the Sony A7R IV camera, Sony 90mm macro, Nauticam A7R IV housing, dual Sea & Sea YS-D2J strobes. f/22, 1/250, ISO 400
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