Underwater digital cameras; the sort professionals use are very expensive and not normally used by casual photographers The likes of marine biologists and other scientific personnel use underwater digital cameras to study life beneath the waves Many waterproof cameras are ok but they cannot be submerged for more than a meter below the surface of the water
In fact the only way you are really going to get to use an underwater digital camera is if you buy one of these small specialist cameras that are able to be submerged for short periods.
Owing to the constant problems faced by underwater cameras, there aren?t enough manufacturers who are willing to spend time developing something that has to overcome the problem of water and electronics combined with pressure. Some of you may have seen or tried the cheap solution to this problem that comes in the form of a plastic casing. Cases like this, inexpensive in comparison to a real underwater digital camera, can for a while make you believe that you too are some kind of underwater photographer.
Before you rush off and buy one of these clever cases there is some information about underwater shooting you need to know.
The water has a strange effect on light as I am sure you have experienced from time to time; it is called diffusion and the deeper you dive the more this distortion takes place. You will notice that images captured underwater are always darker and this is a The water also has a strange effect on how the pictures look giving them the appearance of being magnified. Use the cameras viewfinder to check that what you want in the image is actually in the viewfinder or the shot will be wasted.
It is a good idea to make sure that the camera won?t leak whilst you are diving so just hold it under the water for a few seconds to be on the safe side. which will allow water to access the case so look for this as well. It is also advisable to put a silica gel pack or two inside the case of your underwater digital camera as long as they don?t disturb the camera?s operation.
Ask your underwater digital camera supplier if you can add extra lenses to complete the kit. Lenses that allow you to get really close to the subject can also normally be fitted jus ask if the camera has a macro facility.
One problem with using an underwater digital camera is that if it is not rinsed off thoroughly, the salt can crystallize and cause leaks later on. It is not uncommon to experience the odd grain of sand getting into the case which will cause problems later on so rinse the case with a flow of clean water.
Manufacturers who can supply this type of equipment are Sony, canon and Nikon, so to find out more log onto their web sites.
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