Camera obscura: an early mechanism for projecting images
Visible spectrum: is the portion of the electromagnetic spectrum that is visible to the human eye.
Shutter button: the still camera takes one photo each time the user presses.
aperture : A space through which light passes in
shutter : A mechanical device of a camera that controls the duration of a photographic exposure, as by opening and closing to allow light coming through the lens to expose a plate or film.
exposure : the perture and brightnesss controls the amount of light that enter the camera, while the shutter controls the length of time the light goes through.
depth of field : The amount of distance between the nearest and farthest objects.
F-stop : A camera lens aperture setting that corresponds to an f-number.
focal length : The distance between the center of a lens or curved mirror and its focus.
Inside of SLR Camera
Back of T-3 camera
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