Cameras and eyes both detect light. Both cameras and the human eye use lenses to focus light. Both cameras and the human eye contain material that is sensitive to light. Follow me please class.

An image developed from the retina of a recently deceased person is called an “optogram,” Of course it sounds far-fetched now, but in the mid-1800’s, to a public just learning of the new technology of ...

Darwin acknowledged from the start that the eye ... "vision" a little sharper. At the same time, the pit's opening gradually narrowed, so light entered through a small aperture, like a pinhole camera.