For faster navigation, this Iframe is preloading the Wikiwand page for Image circle.

Image circle

A simulation of an image circle formed inside a camera. The rectangle marks the film area of the photographic film or image sensor. In practice, the edge of the image circle is sometimes less abrupt than shown, and the image quality near the periphery is degraded in more complex ways than is simulated here.

The image circle is the cross section of the cone of light transmitted by a lens or series of lenses onto the image plane. When this light strikes a perpendicular target such as photographic film or a digital camera sensor, it forms a circle of light – the image circle. Various sensor aspect ratios may be used which all fit inside the same image circle, 3:2, 4:3, 16:9, etc.

A lens to be used on a camera that provides movements must have an image circle larger than the size of the image format (Adams 1980, 54). To avoid vignetting, a photographer using a view camera must ensure that the area remains within the image circle (Adams 1980, 56–57; 151–52; 157–61); a tilt/shift lens or perspective-control lens used on a small- or medium-format camera usually has mechanical limitations that keep the frame area within the image circle.

See also

References

  • Adams, Ansel. 1980. The Camera. The New Ansel Adams Basic Photography Series/Book 1. ed. Robert Baker. Boston: New York Graphic Society. ISBN 0-8212-1092-0
  • Ray, Sidney F. 2000. The geometry of image formation. In The Manual of Photography: Photographic and Digital Imaging, 9th ed. Ed. Ralph E. Jacobson, Sidney F. Ray, Geoffrey G. Atteridge, and Norman R. Axford. Oxford: Focal Press. ISBN 0-240-51574-9
  • Ray, Sidney F. 2002. Applied Photographic Optics, 3rd ed. Oxford: Focal Press ISBN 0-240-51540-4

Further reading

  • Langford, Michael J. Basic Photography, 3rd ed, 63–64. Garden City, NY: Amphoto, 1973. ISBN 0-8174-0640-9
  • Ray, Sidney F. Photographic Lenses and Optics, 125. Oxford: Focal Press, 1994. ISBN 0-240-51387-8
  • Stroebel, Leslie. View Camera Technique, 3rd ed, 62–67. London: Focal Press, 1976. ISBN 0-240-50901-3
{{bottomLinkPreText}} {{bottomLinkText}}
Image circle
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?