Quote:
Originally Posted by OccultHawk
Riddle me this
It’s a fact that if a near sighted person looks at objects in a mirror objects that are farther away they will become blurry same as if they were just looking out at a landscape
I read that it’s because the light still has to travel farther to get to the mirror if the object is farther away but that doesn’t make sense to me because the light from the mirror only has to travel from the surface of the mirror to your eyes
Another explanation is because it’s because your brain is trained to blur things out from a distance if you’re near sighted. Well if that’s true then why doesn’t your brain blur out far away objects in a photograph?
Riddle me that, smarties
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The distance argument is right. Near sightedness means things get blurry because your eye focuses too strongly, so approximately parallel light rays from for away objects don't end up focused on your retina. So it depends on how much the light rays diverge/converge.
The picture below shows that the rays are reflected by the mirror, but not refocused. Effectively, if you consider how much they diverge, they come from the original source; you can even get the same result by setting an imaginary source point behind the mirror.
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