Lenses


 * achromatic lens
 * anamorphic lens
 * anastigmatic lens
 * aplanatic lens
 * apochromatic lens
 * convertible lens
 * fisheye lens
 * fixed-focus lens
 * long-focus lens
 * normal lens
 * portrait lens
 * process lens
 * standard lens
 * stereo camera
 * telephoto lens
 * wide-angle lens
 * zoom lens