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.
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.
Then there's resolution and video quality. You'll want a camera that can record in 4K for sure. The top-end models from DJI and GoPro offer 60fps 4K with digital stabilization that's absolutely incredible. They're also not limited to ultra-wide views; you can set a narrower angle to remove lens distortion, making them solid choices for vlogging and travel logs.
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