The Canon G7X III is a tiny camera with a large 1-inch, 20 MP sensor, a direct competitor to the Sony RX100 series cameras. It is an excellent, fast-focusing camera with great image quality and has dedicated macro focus. The camera also boasts 4K video, slow motion video, a bigger image buffer, a new stacked sensor, a better image processor, and quicker burst shooting over the G7X II.

How long does GoPro battery last?


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.
Action cameras like GoPros have their advantages too though. They're generally much smaller than waterproof compacts, making them lighter and easier to mount via a chest harness or helmet mount or similar. The best action cameras also tend to have better video specs, offering pristine 4K in high frame rates, which many waterproof compacts currently lack.

What is a good cheap action camera?


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.
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 Blackmagic Pocket Cinema Camera 4K (BMPCC4K) is known as a disruptor camera, as it offers most of the features videographers hold in high regard at an impressively affordable price. The BMPCC4K has a Micro Four Thirds sensor, records 4K video at 60fps and even records RAW and ProRes files. This small, highly affordable cinema camera offers key features that were previously held captive by top-of-the-line, high-budget demanding cinema systems like the Canon C200, RED Digital Cinema Cameras, or the Arri Alexa Series. Recording in RAW or ProRes provides you maximum flexibility during post-processing and allows you to apply professional color correction to your footage.
Now, as mentioned previously, the 4K Video Type is an important factor to consider as well. In order to record 4K 60p, the Panasonic S1 crops the sensor to a APS-C sensor at 4:2:0 8-bit. Although this is not as impressive as the Full Frame 4K 60p recording available with the Canon 1DX MkII, it is still a leap forward in full frame mirrorless technology and a particularly favorable feature.
The Canon 1DX Mark II has been a staple DSLR camera for professional video since its release in early 2016. It comes equipped with a 20MP, 35mm Full Frame Canon CMOS sensor and records 4K video at 60fps or Full HD video at 120fps. Very few full-frame cameras can record video at these high frame rates and a high bit-rate, which can then be slowed down for slow-motion video.
When we say "waterproof camera" we can mean a number of things, so it's important to define our terms. There are two main popular types of waterproof camera: waterproof compacts and action cameras. Waterproof compacts tend to resemble an ordinary compact camera, with the main difference being that they're, well, waterproof. They tend to be marked out by distinctive bright colouring (useful if you drop them underwater), and the main edge they have over action cameras is the option of an optical zoom lens, allowing you to get closer to your subjects without suffering loss of picture quality. 
When combined with a wet macro lens (diopter), super macro photography is within reach. The tiniest details of the smallest subjects can be captured with this set up (once you get a little practice in of course). With the RX100 VI we recommend using the Bluewater +7 if you are just getting the hang of macro and super macro photography. The Nauticam Compact Macro Converters (CMC-1 & CMC-2) are top of the line wet lenses with amazing lens sharpness but have a lot of magnification and can be a little more difficult to use.

Which GoPro is best for underwater?


Like I mentioned, underwater housings can cost more than the camera itself so choosing the right one is an extremely important decision. They do more than just keeping your camera dry. They also protect it from pressure, allow you to use the camera controls, enable the use of different lens ports and hold accessories like lighting. Be sure to invest wisely on this one!

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.
The Nikon D810 raises the bar for image quality and dynamic range. It performs with great speed and precision, making it great for shooting wildlife. With 36.3 megapixels and an all-new full-frame sensors paired with Nikon’s innovative EXPEED 4 image processing, this camera delivers flawless detail retention and noise-free images from ISO 64 to 12,800. For those seeking the best in DSLR image quality, the D810 is for you.
Action cameras like GoPros have their advantages too though. They're generally much smaller than waterproof compacts, making them lighter and easier to mount via a chest harness or helmet mount or similar. The best action cameras also tend to have better video specs, offering pristine 4K in high frame rates, which many waterproof compacts currently lack.
Belonging to a previous generation of GoPro, the HERO5 Black is still a hugely impressive camera, one that can now be picked up for a reduced price with the advent of the HERO7. Like that model it shoots 4K video, albeit at a lower frame rate than the HERO6 or HERO7, and still has the useful 2in touchscreen on its rear. Full HD video can be shot at 120fps for super-slow-motion output, and it’s possible to shoot stills in Raw format, which gives you greater flexibility to tweak them in post-production. This was also the point at which GoPro HERO cameras received dual microphones, improving audio capture. If the HERO7 Black is too dear for you, this waterproof digital camera should more than satisfy your needs.
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.

professional underwater camera

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