The feature-set and price point of the DJI Osmo Action make it pretty obvious from the get-go that it's an attempt to undercut the GoPro HERO7. Does it succeed? Like all things, it's complicated. The front-facing screen is a boon, the stabilisation is just as silky smooth as the HERO's, and it's wallet-friendly price is nothing to sniff at. That's not to say it's perfect; there are a few lag issues at high resolutions, the app can be unreliable, and video from the HERO is a touch flatter, which counts in professional realm when it comes to the grade. For an affordable alternative to the HERO7 Black though, the Osmo Action is a fantastic choice.

Which underwater camera is best?


There have been many improvements in the compact camera lines over the past few years. Larger sensors, faster focusing, and more controls have all led to a selection of cameras that work smoothly, keep size tiny and are functional with a variety of lenses and accessories to round out your underwater photography experience. Sony and Canon have both given their compact cameras one inch sensors, and greatly improved focus speeds over the cameras of a few years ago. Olympus continued to add features to their cameras while keeping both price and size down.


Another particularly exciting camera that we are anxiously awaiting, and which should be released anytime time now, is the Sony a7S III. Due to the success of the Sony a7s II we think the a7S III will be an even more exciting release. When Panasonic announced 6K capability in the S1H, there has been some speculation that Sony may try to match this capability with the a7S III, but it’s impossible to know.

The GoPro Hero 6 is the most advanced GoPro action cam on the market today. It’s a great option for shooting video. It features SuperView™, a exclusive video mode that captures the world’s most immersive wide-angle perspective. It allows you to capture more of your surroundings in the shot compared to the earlier Hero models. It’s not uncommon to see a pro $20,000 underwater rig with one of these tiny cameras mounted on it to record high quality video while the photographer shoots stills.
Canon is consistently a leading manufacturer of cameras and lenses in the video realm and the 1DX MkII is their flagship camera. The color science that is characteristic of Canon systems is highly sought-after and the sharpness of their lenses is not to be understated. If you are looking for a top-of-the-line DSLR that functions not only as an amazing stills camera but also as a professional-grade video camera, the Canon 1DX MkII is for you. The downside, is that the underwater housings are somewhat larger than the other housings listed in this guide.

Most models have a single lens, with an ultra-wide angle of view, so you can experiment with mounting and get a big view of the world in frame. Some dual-lens cameras, like the recently announced GoPro Max, capture a 360-degree view of the world. VR playback isn't as popular as it was at the peak of the fad, but editing tools make it possible to convert 360-degree footage into a 16:9 playback format in creative ways.


Lead camera analyst for the PCMag consumer electronics reviews team, Jim Fisher is a graduate of the Rensselaer Polytechnic Institute, where he concentrated on documentary video production. Jim's interest in photography really took off when he borrowed his father's Hasselblad 500C and light meter in 2007. He honed his writing skills at retailer B&H... See Full Bio
The latest flagship GoPro model is our favorite action camera available right now. A key difference from its predecessor (and especially the less expensive Hero7 Black) is that there are fold-out feet, giving you the advantage that the camera mount is now built in. Furthermore, you can accessorise the Hero8 Black with a new series of bespoke optional extras called Mods – we particularly like the Display Mod, which adds a second monitor that is perfect for vloggers, but there are plenty of others, including a Media Mod for improving the production value of your videos, and a Light Mod LED light too. These add-ons cost you more – but if you are looking for the very best action camera, and the best GoPro for image quality and features, then the Hero8 Black is it.

professional underwater video camera

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