When not wearing my glasses, why is nothing distant in a photo blurry, but distant things in a mirror are blurry?
In: Physics
Let’s say you’re looking at a distance object that’s in focus through your phone’s camera but looking directly at the object you see it blurry.
You can think of the phone camera as doing some of the work that your glasses would have because the light only travels from the screen to you but looking directly the light has to travel all the way from the object to you.
Something about mirrors, even if you are close to a mirror the light still has to travel a long distance (from the object to the mirror then to you). This isn’t the case with a camera because a camera has a bunch of lenses inside it that bend the light like your glasses.
What’s important for your vision isn’t the distance but the angle of the light rays to each other (going past eli5) but the angle is directly related to the distance unless it passes through something which bends the light such as a lense in which case there’s no meaningfull relationship until you account for the lense.
Latest Answers