When not wearing my glasses, why is nothing distant in a photo blurry, but distant things in a mirror are blurry?
In: Physics
I’m guessing you suffer from short sightedness, where your eyes can’t focus to infinity.
A photograph is a two dimensional recording of light intensity made out of silver crystals or pixels taken through it’s own lens set to the correct focus, so your eyes are focusing on a piece of paper or glass, it simply travels directly into your eye.
Mirrors reflect light back, exactly the same as what went into it, so if a mirror was reflecting a scene of a distant landscape, focusing onto that scene with short sightedness will be an attempt to focus your eyes to infinity, which as you may know its not possible with that condition.
With a mirror your looking at real light, whereas a photograph is just a state of light in time stored on a flat surface.
You can try this with a camera, focusing on the mirror will get the surface of the mirror, any longer and it will be what the mirror is reflecting
Latest Answers