Cameras

Every type of camera, whether basic or advanced, will have the same basic components necessary to control exposure and record an image on film.

The first component is a light tight container that must keep light out while the shutter is closed.

The second component is the shutter. This could be a set of sliding doors called a focal plane shutter, or a combination of leaves that open and close when the shutter release is triggered.

The next important component of the camera is the aperture. This is a set of leaves or thin metal plates that form a circular opening through which light passes, and therefore an image of the subject, to the focal plane.

Finally the film plane is where the subject is focused onto the film. This area is in the back of the camera behind the lens, where the film is located. The closer the camera is to the subject, the further the focal plane must be from the aperture for it to be in focus.

The four basic types of camera are as follows:

Single Lens Reflex (SLR)
Twin Lens Reflex (TLR)
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