William Thompson was the first known person to ever capture an underwater photograph in Weymouth Bay, England, 1856.
Since the first submerged photo, we have invented the average disposable underwater camera as well as multiple housing units for almost any camera.
However these housing units can cause some inconveniences while shooting underwater. All objects seen through the plastic of the housing units appear magnified and closer than they actually are. Also, there are many more particles in the water compared to air, this is another difficulty when shooting underwater because it causes poor visibility. Good transparency underwater is 40 to 50 meters, and poor water transparency means visibility of only 10 meters! Another reason shooting underwater can be difficult is because when at greater depths you begin to lose color as well as contrast.The water absorbs the sunlight so quickly that everything appears blue-green. Some ways to combat these obstacles would be to get as close to your subject as possible as well as always using flash.
Living at the beach I love the water, and as a photography student I thought it was an interesting field that many may never think about or dabble in. I personally have been scuba diving and have tried to photograph with a housing unit, in an unfamiliar environment the photos didn’t turn out the way I had hoped so I thought a little research could better my future endeavors.”Underwater photography is used for scientific purposes, for example in the field of underwater archeology and also for journalistic, artistic or personal hobby.”(https://thecustomizewindows.com/2012/05/underwater-photography-facts-and-technologies/)