Similarities

Both the aperture and the pupil function as the opening for light to enter.

The diaphragm controls the size of the aperture while the iris muscles control the size of the pupil which controls the amount of light entering the camera or the eye.

There are photosensitive chemicals on the film and photoreceptors (rods & cones) in the retina where in the object of light action to form an image.

The camera has a dark internal surface and the Human Eye has a pigmented, dark choroid which absorbs excessive light to prevent multiple images formation.

Difference

The difference between a camera and a human eye is their focusing mechanism where in the camera changes the distance between the lens and the film while the human eye changes the focal length of lens using the ciliary muscles.

posted by elaine ROSE at

9:12 PM