Strictly speaking, a camera’s lens is too simple to be comparable with the whole eye; however, an entire camera can meaningfully compared to the human optical system. A camera’s lens is analogous to the human cornea; photographic film or light sensors can be compared to the retina. Both systems can adjust the amount of light they allow in, by means of the iris in a human eye or the aperture control in a camera. There are also a number of notable differences – not least of which is the obvious one that the human eye is an organic, biophysiological entity rather than a comparatively simple, human-made mechanical device. Writer Bio
