What's the Difference Between the Human Eye and a Camera?

Illustration for article titled What's the Difference Between the Human Eye and a Camera?

Pixiq has a great write up on the similarities and differences between the human eye and a camera. Apparently, we're the same in image focusing and light adjustment but different in lens focus and sensitivity to light. What else?


Pixiq's breakdown gets even more interesting when they explain how cameras work like our eyes. The cornea acts like a lens, the iris and pupil act like the aperture of a camera and the retina is like the imaging sensor of a digital camera.

There's much more interesting tidbits in their piece and I suggest you skim it all, you might even find out what the ISO of a human eye is. [Pixiq]



Something that has bothered me for a long time: Eyeglasses. Why do people's eyes fail at focusing so easily and so often? Think about it — one of the most vital organs we have for survival and so many of us need corrective eyewear. Is it because we read a lot and our eyes weren't designed for nearsightedness? That seems absurd — what other vital organ system becomes "broken" by using it frequently within a narrow range of its capabilities? None. Every other system gets better when it's used for a specialized function (ballet, weightlifting) but our eyeballs fail. I find this utterly astonishing — like a massive design flaw in the human body.