As a mirror is a flat plane, shouldnt we be able to
see everything reflected in that plane in focus?
In: 0
The mirror itself is a flat plane, but that doesn’t mean that all the light bouncing off it is coming out in the same direction…mirrors bounce light back through the same angle it came in at. The mirror doesn’t do anything to change how light rays are coming together or spreading apart, which is all focusing is. They *just* change direction.
This means they can let you see in a different direction by bending the light, but a flat mirror can’t put something in focus (on take it out of focus). What you see in a mirror will be just as in or out of focus as it would be if you positioned yourself to intercept those same light rays without bouncing them off the mirror.
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