Using the underwater case for cameras correctly(Photography)

                The winter season has started. The right moment for a short trip in warmer fi elds, in which you can indulge in your underwater hobby. You should have your own camera along this time, because after all you have the suitableunderwater case for it. What do you have to keep in mind when using it?
                Underwater cases are made of tough polycarbonate material in most cases and water-proof up to 40 meters deep – provided you use it in the right manner. See to it that the rubber ring is properly in its groove before locking. You must conduct a sample test in a bucket of water without the camera before going ahead and submerging it in the ocean. For that, lower the closed case in a bucket fi lled with water. It is watertight if there are no bubbles even on pressing the pushbuttons after some time.
                You can use the camera locally in the hotel as well and close the plastic cover. Sand can accumulate on the seal at the beach. Remember to attach the case safely to the equipment. The camera will thus not fl ow off should you let go of it underwater.