#camera_lens__optical_lens  a lens that focuses the image in a camera
  supertype:  #lens_system__lens  a transparent optical device used to converge or diverge transmitted light and to form images
  subtype:  #closeup_lens  #portrait_lens  #telephoto_lens  #wide-angle_lens
  part of:  #photographic_camera__camera  photographic equipment consisting of a lightproof box with a lens at one end and light-sensitive film at the other
  part of:  #television_camera__tv_camera__camera  television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam

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