Dive housing
Also known as: underwater housing, waterproof housing, dive case
A sealed, pressure-rated case that lets an action camera or phone go deeper underwater than its own waterproofing allows and keeps the image sharp.
Updated
What it means
A dive housing is a rigid case, usually clear polycarbonate or aluminum, with an O-ring seal and buttons that press through to the camera inside. Most current action cameras are waterproof on their own to somewhere around 10 to 20 meters, which covers snorkeling and surfing but not recreational scuba. The housing extends that to the depth rating printed on it, commonly around 40 to 60 meters for action-camera cases.
A housing also does an optical job. A curved lens with water directly against it tends to look soft, while the flat front port of a housing keeps the image crisp. Many housings also accept a clip-on red filter or mount points for video lights.
How it works in practice
Before each dive, check the O-ring for hair, sand and nicks, grease it only if the manufacturer calls for it, and close the latch until it clicks. A short test in a rinse tank or pool before the first dive of a trip catches most leaks. After every day in salt water, soak the closed housing in fresh water and work the buttons to flush out salt.
Set mode, resolution and white balance on the surface, because the touchscreen usually does not work through the case. Many divers simply start recording at the top and stop at the end, which turns each dive into a set of chaptered files and drains the battery faster in cold water.
What to watch out for
Flooding is the disaster scenario, and it almost always starts with something small: a single hair across the seal, a latch half closed, or a case opened on a rocking boat with wet hands. Close it in a dry, clean place and do not open it between dives while you are still dripping.
The quieter problem is fog. Warm, humid air sealed in the case condenses on the cold port at depth and blurs an entire dive while the camera stays perfectly dry. Close the housing in cool, dry air, let a hot camera cool down first, and drop in anti-fog inserts. Scratched ports are another hidden enemy, so keep a cover on between dives.
How RawClip handles it
RawClip does not correct underwater colors or remove fog, so get those right in the water with filters, lights and a dry housing. Upload every chapter of every dive as MP4 or MOV, and the AI keeps the moments with the most going on, drops the long empty blue stretches and builds one highlight.