camera parts

 Aperture- an opening in which light passes before reaching the film.
  Shutter- blocks all light from exposing the film UNTIL you press the button.
Exposure- In order for an image to be captured on film, it must be exposed to light.
Depth of Field- The distance between the nearest and the furthest objects that give an image judged to be in focus in a camera.
F-stop- A camera setting corresponding to a particular f-number.                                                  Focal length- The distance between the center of a lens or curved mirror and its focus.