a transparent optical device used to converge or diverge transmitted light and to form images

equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other)

television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam

A camera accessory consisting of an optical filter that can be inserted into the optical path.

a photographic lens with a short focal length used to take pictures at short ranges

a compound camera lens with a relatively high aperture

a camera lens that magnifies the image

a camera lens having a wider than normal angle of view (and usually a short focal length); produces an image that is foreshortened in the center and increasingly distorted in the periphery

The Rapid Rectilinear, recognized under a vast number of other names, is a famous photographic lens design; it was introduced by John Henry Dallmeyer in 1866.

equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other)

television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam

A camera accessory consisting of an optical filter that can be inserted into the optical path.