Similarities between Photography and Vision

Photography is very similar to our vision. The lenses of our eyes project the incoming light waves onto the cone and rod shaped light-sensitive cells located on the retina (the internal lining of our eyes).
Similarly, a camera has a lens which projects the incoming light waves of photons onto a light-sensitive chemical film in a conventional camera or onto a matrix of sensitive pixels
But unlike the impressions captured with our eyes, the digital image or film can be used to make a more permanent representation of reality for future viewing and sharing with others, for example on a computer monitor which emits light (direct way of seeing) or via a printed copy which reflects light that falls upon it (indirect way of seeing).