camera obscura – Latin for “dark room”
stop – used in every aspect of photography to represent a relative change in the brightness of light.
shutter – blocks all light from exposing the film UNTIL you press the button. Then it quickly opens and closes, giving the film a brief flash of light.
aperture – Before light reaches film, it must pass through an opening called an “Aperture”.
shutter speed – determines how long the shutter stays open
depth of field – The distance range in a photographic image where everything is in acceptable sharp focus.
exposure – the amount of light that’s able to reach the camera’s CCD sensor
focal length – the distance (in mm) from the optical center of the lens to the focal point, which is located on the CCD sensor
additive primaries – the red, blue and green, or RGB of the basic color model
additive secondaries – created by adding the primaries of the RGB color model.