File:Lenses with different apertures.jpg

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	20:43, 18 April 2019		3,450 × 2,200 (2.65 MB)	KoeppiK	{{Information \|description ={{en\|1=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 tw...

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