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tade
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When you look at an object, say, for example, 30 feet away, your eyeballs adapt to focus at that distance of 30 feet.
When you look at the same object through a pair of binoculars, at what distance do your eyeballs adapt to focus at?
Is it more or less than 30 feet?
This is not a question about human biology, but about geometric optics. In other words, what is the focal distance of an image seen through a pair of binoculars
When you look at the same object through a pair of binoculars, at what distance do your eyeballs adapt to focus at?
Is it more or less than 30 feet?
This is not a question about human biology, but about geometric optics. In other words, what is the focal distance of an image seen through a pair of binoculars