The first record of underwater photography dates back to 1856, when English adventurer William Thompson took the first water photograph with a camera in a waterproof case.

However, Louis Boutan is the name of the diver who opened the door to underwater photography. He is credited with being the first person to capture scientifically useful photographs in the late 19th century.

How they took the first underwater photo. Boutan had two major challenges ahead: pressure and light. Although Thompson surpassed him, his experiment only worked halfway. The British man’s lodge only managed to descend five meters below, and the photo he took was of very low quality and had no scientific validity.

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Together with his brother, Boutan created a camera inside a waterproof iron box. The shutter was operated by a lever, and internal pressure could be balanced with external pressure by means of an inner sphere.

The camera was placed on a tripod on the sea bed and had to be submerged in water before the diver could operate it. Once the pressure issue was resolved using the box and tripod mount, it was time to check the light.

To do this, a type of water flash was developed: a glass bottle containing oxygen and a magnesium cable that can be turned on for half an hour thanks to batteries.

The photo was taken with Realme GT7 Pro.

How do current manufacturers do this?. It has undoubtedly rained in the century and a half since the first underwater photography was done. This is one of the new challenges facing phone manufacturers. And interestingly, it has many limitations compared to Boutan’s invention.

Realme and OPPO were the first manufacturers to incorporate “underwater” photography mode. In OPPO’s Reno 13 model, the depth to which we can immerse the phone is up to 1.5 meters. In the case of Realme with GT7 Pro they are talking to us about two metres.

The important thing is that the new IP69 protocol allows phones to withstand pressurized jets; This is a significant improvement over IP68. Despite this, they do not recommend using the phones under water for more than 30 minutes and do not cover any damage that may arise from this use under warranty.

Image | commons

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