Diagram showing how a camera forms an image | |
Diagram showing how an SLR (Single Lens Reflex) camera viewfinder works. The viewfinder sees the exact same image as the film does by using a mirror. At the instant that the button is pushed, the mirror flips out of the way and the light goes to the film. | |
Simple diagram showing how an SLR camera works (from Encyclopedia Britannica). | |
Diagram showing that a real camera lens is not ground exactly to a spherical shape because rays far from the center are not focussed correctly. Instead, the lens has a more complicated shape as shown in the diagram. | |
No single lens has the ability to make a perfect image, especially large lenses. Camera makers use various kinds of lens combinations to correct these imperfections, as shown in this diagram. | |
Illustration demonstrating the difference between using a camera at fixed position with a telephoto lens (fixed persepctive) and moving the camera closer (changing perspective) (from Encyclopedia Britannica) |