Westminster fountain at sunset

by Jorge Córdoba

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5
votes
3answers
155 views

How do waterproof lenses focus underwater?

Our eyes need air in front of them to be able to focus properly, that's why when we go swimming using goggles, our surroundings are much clearer than without. So my question is, how do waterproof ...
0
votes
1answer
33 views

Find focus and effective range of single focus camera

I have a cheap camera that is supposed to take videos underwater. It is a camera in a case that is set to a single focus. I checked the specs and it is a manual set focus camera. When I asked the ...
4
votes
3answers
442 views

How Does Focus Differ Above and Below Water?

While I am trying to figure out what I need for split-underwater photography, an interesting fact came to light: A lens focuses at different distances in air than underwater. How is the focus ...