license: This image is a derivative work of the following images: File:Tele_lens.png licensed with GFDL-en, GFDL-user-en-with-disclaimers 2009-07-28T17:50:45Z
Attribution-Share Alike 4.0 truetrue English Very simplified optical diagram of a telelens. French Schéma optique très simplifié d'un téléobjectif. author name string: