TK_Test

TK_Test_300Words

*The camera.*  

It freezes a moment in time and records it to film or a digital file.  
Simply, it is a mechanical recreation of your eye.  
The parts are all there and they operate the same way.  

The eye has an iris, retina and eyelid.  
The camera has a lens, film and shutter.  

These control the amount of light, sensitivity to light, and duration of exposure.  
When all three parts work together, they create the optimal image.

Lens:
The iris of your eye is light’s gateway to the retina.  
It adjusts to let in more or less light depending on brightness.  
On a bright day, the iris becomes very small, allowing less light to pass through.  
In a dimly lit room, the iris opens very wide.  Ditto for the camera lens.  
When you’re taking a picture at dinner in a restaurant, you have to open the lens very
wide to allow more light through to the film.

Film:
Film has a certain level of sensitivity to light.  It needs enough light to register, 
but too much will over expose the film and ruin it.  Think of the retina as the film
inside your eye.  You need a certain amount of light to make sure you don’t stub your toe
in the dark, but too much will be blinding.

Shutter:
Eyelids control how long light gets through the iris, no matter how wide it is, and onto
your retina.  It protects the retina from being overexposed and blinding you.  Same for
the shutter of a camera.  The film has a certain level of light that it can handle, so
depending on how open the lens is, the shutter allows the right amount to come through to
make a perfectly exposed image.