Performing of taking pictures of deleted objects with the help of telescope objective on photographic plate, placed into its focal plane. Received picture with the help ocular from the same telescope is projected on deleted screen. What angle magnification of telescope should be that at the same time was fully used resolving power of the telescope objective? Picture on the screen is examined from the place where projector is fixed.
N ≥ D/d, where D – diameter of objective, d- pupil of the eye.