Image: Lenses with different apertures

Size of this preview: 800 × 510 pixels. Other resolutions: 320 × 204 pixels | 3,450 × 2,200 pixels.

Original image ‎(3,450 × 2,200 pixels, file size: 2.65 MB, MIME type: image/jpeg)

Description: This pictures shows a lens with focal length of 50 mm and different aperture settings. Changing the aperture by one stop changes the aperture area by a factor of 2 (the area at stop f/1.4 is twice as big as the area at stop f/2.0). Each stop is specified by the diameter of the aperture as fraction of the focal length. At stop f/1.4 the aperture has a diameter of 50 mm/1.4 ~ 35.7 mm. The diameter as well as the fraction changes by a factor of square root two from one stop to the next one. The lens is a Nikon AF Nikkor 50mm f/1.4D.
Title: Lenses with different apertures
Credit: Own work
Author: KoeppiK
Usage Terms: Creative Commons Attribution-Share Alike 4.0
License: CC BY-SA 4.0
License Link: https://creativecommons.org/licenses/by-sa/4.0
Attribution Required?: Yes

Image usage

The following 2 pages link to this image:

All content from Kiddle encyclopedia articles (including the article images and facts) can be freely used under Attribution-ShareAlike license, unless stated otherwise.