How Does A Camera Work?!

Lets Start With...• How an eye works

• Light enters the eye through the pupil, the dark center of the colored iris

• Next, light passes through the lens which expands or contracts to focus an image

• Then the light hits the back of the eye which is lined with the retina

• The retina is lined with photoreceptors that translate the light into electric impulses sent along the optic nerve to the brain

How the Camera Works

• Light enters the lens and passes through the aperture (*pupil) .

• Then light is focused upon by adjusting the camera lens (*lens).

• The light hits the film or camera sensor inside of the camera (*retna) where it creates and records an image.

• When a shutter button is pressed the shutter closes, blocks light from the film/sensor so that it can record the image.

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http://www.youtube.com/watch?

v=lhfI92umkZ4&sns=em