The Sony A7 series has led the charge in full frame mirrorless cameras and the A7 III and A7R III have been some of the most popular cameras on the market since their release in April 2018. Similar to the Nikon Z6 and the Panasonic S1, the Sony A7 III has fewer, larger pixels compared to the A7R III and therefore, a more favorable for video use due to the resulting low light capabilities. The A7 III tops out at 4K 30p and records internal 4:2:2 8-bit video. You also have the ability to shoot on various picture profiles like HLG & S-Log3 Gammas, which offer less-compressed video capture and facilitate maximum color rendition and dynamic range for post-production flexibility. It also has impressive autofocus capabilities with a 693-point hybrid autofocus system.
What makes the “Best Underwater Video Camera”? When shooting underwater video, or video in general, there are many factors to consider. To start, being able to record 4K video is now a luxury that is expected out of any respectable video camera and 4K capture is definitely something you should consider when choosing your underwater video camera. The good news is nearly every new DSLR, mirrorless or compact camera features 4K recording capabilities. Where it becomes complicated is the 4K Video Type, which basically is the way in which a camera records 4K video. There are three types of cameras when it comes to 4K recording. The most ideal camera is one that has a full pixel readout from a 35mm sensor (often shooting the initial video in 6K) that will downsample to 4K, adding additional details to the video. Intermediate 4K quality comes from cameras that use pixel binning to process their 4K video. The worst 4K quality comes from cameras that “crop” the video by using only part of the sensor to capture 4K footage. This produces the worst quality because less sensor area is being used to capture light while filming video. The Canon EOS R was a disappointment for videographers for this reason.
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The A7 III, with its compact and ergonomic design, has been a very popular camera for video recording. The battery life is drastically improved compared to the previous A7 Series cameras, which was a primary complaint of Sony Alpha users and is particularly beneficial for underwater video, as it allows you to shoot for much longer without the need to open the housing. The A7 III also has dual SD card slots, which play an additional role in the maximum allotted time you can record underwater without having to open the housing. The auto-focus during video works very well.

Are GoPro adhesive mounts reusable?


The Nikon Z6 is the Nikon equivalent of the Panasonic S1 -- Nikon’s lower-megapixel version of their Z Series full frame mirrorless cameras. The Nikon Z6 offers a 24MP, full frame sensor with fewer, larger pixels than the Z7 making it a more favorable choice for video due to the low light advantages. One benefit of the Nikon Z7, as compared to the Panasonic S1, is its size. The Z7 is small and compact -- a major reason why people are turning from DSLR cameras to mirrorless cameras. The Nikon Z7 has phenomenal autofocus capabilities with 273-point hybrid phase-detection contrast autofocus technology. It tops out at 4K 30p but can natively output 10-bit 4:2:2 over HDMI in the new N-log color profile, promising greater dynamic range and flexibility in post. Beyond that, with its new firmware, it will become the first hybrid camera to offer RAW video output when coupled with the Ninja V monitor/recorder.
The Sony RX100 VA, VI & VII cameras are the latest additions to the Sony RX100 series and are packed with lots of awesome features for underwater photography. They are the top of line compact cameras to date. Autofocus is lightning quick in both cameras, which is very beneficial for underwater application. Both feature a large 1" sensor with 20 MP resolution, which provides excellent image quality, fast autofocus, useful video modes (like slow motion) and full manual controls. The RX100 VI's key upgrade is its enhanced zoom using a 24-200 mm f/2.8 – 4.5 lens. The RX100 VA's key upgrade is 24fps sequential shooting, enhanced image buffer, and a customizable menu system. The RX100 VII has some minor improvments over the VI.

There are three things that make the RX100 series one of the best underwater camera. First, their 1-inch sensor size is larger than most other compact cameras besids the G7X II, giving better image quality and better low-light performance due to a larger pixel size. Second, the auto-focus speed is faster than traditional compact cameras. Last, but not least, is its advanced video features, including 4K video.

The A7 III, with its compact and ergonomic design, has been a very popular camera for video recording. The battery life is drastically improved compared to the previous A7 Series cameras, which was a primary complaint of Sony Alpha users and is particularly beneficial for underwater video, as it allows you to shoot for much longer without the need to open the housing. The A7 III also has dual SD card slots, which play an additional role in the maximum allotted time you can record underwater without having to open the housing. The auto-focus during video works very well.

Are GoPro adhesive mounts reusable?


Housings are a topic that deserves a detailed post of their own and you’ll see one here on The Adventure Junkies in the future. But, until then let me briefly talk about choosing an underwater housing. Also, you can read Basics of Underwater Photography: Choosing Cameras & Housings which goes into more detail about housings as well as ports, lenses and accessories.

Are Gopros waterproof?


The Sony A7S II has been a go-to mirrorless camera for underwater video since its release in September of 2015. For the Sony loyalists looking for top-of-the-line image quality in a small and compact form, the A7S II is for you. It embodies a 12.2MP full frame CMOS sensor and can shoot true cinema 4K video at 24fps, as well as UHD 4K at 30fps and smooth slow-motion video at HD 1080p video up to 120fps. Paired with an impressive 5-axis in-camera image stabilization you can get ultra-sharp, steady footage even when shooting hand-held. 

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The rest of the camera's highlights include Wi-Fi for smartphone connectivity (via an app), GPS, a built-in eCompass, and a temperature sensor. You can embed data from the sensors in your images when you edit them, thanks to a dedicated app by Olympus. And the 3-inch LCD display means navigating through all the camera's features is easy. The screen is considerably sharper than one found in the device's predecessor.

What do you do with a GoPro camera?


The W300 does have GPS, Bluetooth, and Wi-Fi connectivity for seamless smartphone connectivity. The rest of its highlights include a 3-inch LCD display and a quartet of environmental sensors whose data you can add to your images. They include a barometer, a compass, a built-in depth gauge, and a thermometer. Nikon offers the camera in black, yellow, and orange.
The TG-6 can capture excellent 12 MP stills in up to a whopping 20 frames per second, as well as ultra crisp 4K video via a 4-times magnification optical zoom lens with f/2.0 aperture. Microscope mode for ultra close-up shooting is also among the camera's features, as is the ability to capture panoramas and time-lapses. Advanced photographers have the option to save their images in RAW file format for more extensive edits. 

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Another highly sought-after, and relatively exclusive, feature within the video camera realm is the ability to record in RAW or ProRes. These are uncompressed formats that maximize the information gathered by the sensor and provide you with extended flexibility when it comes to color grading and post-processing. As mentioned, this feature is quite an exclusive one and only available in a select few cameras on the market with good processors (again, excluding high-end cinema systems). Some select cameras can record in ProRes Raw with an Atomos Ninja V external recorder. Nauticam offers a housing for the Ninja V for use with your underwater system. 

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The design of the Fujifilm FinePix XP140 is fun and kid-friendly, making it a solid choice for family holidays, but this doesn't mean it skimps on imaging tech. While it's not going to challenge something like the Olympus Tough TG-6, it's a capable little camera in its own right, able to shoot 4K video (albeit at a disappointing 15p) and equipped with an impressive 5x optical zoom lens with an equivalent focal range of 28-140mm, and all this comes at an extremely friendly sub-£200 price tag. A new scene recognition mode helps the XP140 assess for what it's photographing (which goes some of the way towards compensating for a lack of manual controls), and the controls are well laid-out and easy to use, even when in murky underwater conditions. For the price, this is a really solid buy.


The Sony RX100 VI is our choice for best underwater camera for macro. This camera boasts a 24-200mm lens that can produce incredible magnifcation for even the tiniest subjects. The zoom and optical quality of this new lens has the capability of producing stunning, detailed macro, and super-macro images – especially when paired with a wet lens. The quick autofocus is also a key feature of the camera. 
The highlight of the RX100 VI over the RX100 VA is its unprecedented macro capability. The zoom on the 24-200 mm f/2.8-4.5 zoom lens cannot be beaten by other compact underwater setups. Details captured with this lens are remarkable. When combined with a wet macro lens (diopter), the realm of super macro photography is attainable. The tiniest details of the smallest subjects can be captured with this set up (once you get a little practice in of course).
The BMPCC4K has a built in 5” monitor, which makes viewing and framing your subjects underwater a breeze. The LCD screen on the BMPCC4K is lovely -- it’s sharp, bright and has good contrast. The BMPCC4K has no in camera stabilization, but this can be solved in post-production with the free Davinci Resolve subscription that comes included with the camera. Also, the BMPCC4K only has single-point autofocus, which is challenging when shooting video underwater. The solution to this, which most videographers prefer anyway, is to use manual focus. With the Nauticam BMPCCII Underwater Housing, there are numerous MFT lenses that Nauticam supports manual focus for. To see a list of supported lenses with the Nauticam BMPCCII Underwater Housing, see our Nauticam Port Chart.
The design of the Fujifilm FinePix XP140 is fun and kid-friendly, making it a solid choice for family holidays, but this doesn't mean it skimps on imaging tech. While it's not going to challenge something like the Olympus Tough TG-6, it's a capable little camera in its own right, able to shoot 4K video (albeit at a disappointing 15p) and equipped with an impressive 5x optical zoom lens with an equivalent focal range of 28-140mm, and all this comes at an extremely friendly sub-£200 price tag. A new scene recognition mode helps the XP140 assess for what it's photographing (which goes some of the way towards compensating for a lack of manual controls), and the controls are well laid-out and easy to use, even when in murky underwater conditions. For the price, this is a really solid buy.
The new Canon EOS Mark III 5D is a top of the line camera that was designed for photographers who want the best. With at 22MP full frame CMOS sensor it delivers high quality video with decreased noise at high ISO settings (100-25600). The Mark III is a great option for professional underwater photographers and advanced enthusiasts who want the best.
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When coupled with the Atomos Ninja V, the Nikon Z6 will output RAW video over HDMI -- similar to what the Blackmagic Pocket Cinema Camera 4K can do internally. RAW video capture, similar to RAW photos, preserves more data than compressed formats and allows you to record more color and capture more detail in the shadows and highlights. This firmware update makes the Nikon Z6 with the Atomos Ninja v recorder one of the most competitive video kits on the market, competing with high end cinema cameras costing tens of thousands of dollars.

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. 

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