eli5, how is it that cameras can see clearly underwater whereas human vision gets blurry?
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Underwater cameras are built to see underwater or in air. Eyes are way more adaptable, most people have “blurry” vision not because they can’t see underwater but because they don’t have enough practice. If you were (especially starting at a young age) to spend a few hours a day in the water you would learn to focus subliminally underwater as well as above. When I was little I could just see the blurs but after spending a considerable amount of time in the ocean I found I was able to see better and better until it wasn’t weird. This was after I was 12, there are tribes that swim long before they walk and they refuse to use goggles.
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