Researching on the depth that cameras can go in water bodies is important when buying water proof cameras. Most strong cameras can even resist even pressures that human body might not be able to resist. This is very important depending on how far you plan to take it.
The weaker types of cameras are called water resistant cameras. They are not suitable at being submerged in water for a long time. Some of them cannot also contain some quantity of water. They are normally useful to backpackers and hikers who may only come into contact with water when it rains.
For taking pictures in places where the camera has to submerge in water bodies it is good to go for camera types like the 9ft and 10ft depth rated cameras.
Most water bodies around us do not have depths of 9ft and 10ft but it is always better to have cameras with this depth as they can fall into the water. Having a normal water resistant camera might be a problem as they can get damaged if they fall into water. The Fuji Finepix XP10 has a depth of 9ft and is good for usage at home.
The 10ft – 30ft cameras are good for diving further than 9ft in deeper waters. These are more resistant and as their name suggest go further than the average camera. There are good for diving and scuba excursions.
A lot of distinguished camera makers create cameras for all depth levels. Makers like Panasonic, Canon and Olympus make these cameras. They have long lines for all depths that you may require cameras for. Some are also made to withstand 10ft falls and been frozen.
Serious divers will have to consider other makers like Sealife to get the range levels that they want to. Sealife makes cameras for depths as much as 200ft. They are however more expensive and can reach costs of up to $500.
Always determine why you need a camera and buy one to suit your needs.