Pupil magnification

From Wikipedia, the free encyclopedia

This is an old revision of this page, as edited by XLinkBot (talk | contribs) at 15:44, 11 August 2017 (BOT--Reverting link addition(s) by Rzekomo to revision 453798640 (http://www.cambridgeincolour.com/tutorials/macro-lenses.htm [\bcambridgeincolour\.com\b])). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

The pupil magnification of an optical system is the ratio of the diameter of the exit pupil to the diameter of the entrance pupil. The pupil magnification is used in calculations of the effective f-number, which affects a number of important elements related to optics, such as exposure, diffraction, and depth of field. For all symmetric lenses, and for many conventional photographic lenses, the pupils appear the same size and so the pupil magnification is approximately 1.

See also

External links

Stub icon

This photography-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Pupil_magnification&oldid=795033356"