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Underwater photography needs different cameras. It is a different challenge to have quality photographs underwater since everything appears to be blue green due to color loss caused by absorption of sunlight. Water is not as transparent as air and is a denser medium where sunlight does not travel straight. Special cameras are required to tackle this problem.

underwater cameras use special wide angle lenses to overcome the horizontal color loss in water. These macro lenses bring the photographic scene closer to the camera resulting into a very little gap between the camera and object. Vertical color loss is resolved by the use of special flash in underwater camera. This special flash provide full color spectrum light to the scene that is being photographed.

Next important thing in underground photography is to take care of obstructions like salt, sand type particles found in water which can damage the camera heavily. Underwater camera use O-ring for protection under water that provides it a watertight seal. Camera needs to be fully waterproof under all water conditions. Its design need to take care of not only basic water related differences but also the various challenges that shall be faced by users like scuba drivers.

Once the basic attributes are taken care of in these cameras, other features like auto focus, exposure controls, comfort etc. can be added.