from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Being or relating to a compound lens which has its entrance or exit pupil at infinity; in the prior case, this produces an orthographic view of the subject.

from The Century Dictionary and Cyclopedia

  • In optics, having its exit-pupil or entrance-pupil at an infinite distance: said of a lens system of which the aperture, or stop, is at a principal focus.


tele- + -centric (Wiktionary)



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