selects and directs the light rays entering the camera brings light from the subjects into focus on the film
convergent lens bens light rays inward POSITIVE LENS convex lens forms upside down and reversed image
divergent lens bens light rays outward NEGATIVE LENS virtual image can be formed since the light rays do not converge
1) Focusing Ring 2) Opening/ Aperture Ring
* Camera lenses are categorized according to their FOCAL LENGTH * The larger the focal length, the larger the image produced.
most common and widely used approximates the angle of view of the human eye NORMAL LENS mm angle
has shorter focal length landscapes WIDE-ANGLE LENS not good in focus gives a wider view but smaller image the normal eyes can see mm
has longer focal length magnifies distance TELEPHOTO LENS mm range * The longer the focal length, the greater the magnification. The narrower the angle of view, the less background.
shift to normal to telephoto ZOOM LENS
curve lenses to achieve fish-eye effect rounded image FISH-EYE LENS