Home > Terms > English, UK (UE) > Aperture

Aperture

Also Known As: F/Number, F-Stop, Effect Aperture, Relative Aperture. A measure of the width of the opening allowing light to enter a camera. The apparent diameter of a lens viewed from the position of the object against a diffusely illuminated background is called the "effect aperture". The ratio of focal length of a lens to its "effective aperture" for an object located at infinity is called the "relative aperture", or "f/number". Larger apertures allow more light to enter a camera, hence darker scenes can be recorded. Conversely, smaller apertures allow less light to enter, but have the advantage of creating a large depth of field. See also shutter speed.

This is auto-generated content. You can help to improve it.
0
  • Part of Speech: noun
  • Synonym(s):
  • Blossary:
  • Industry/Domain: Entertainment
  • Category: Movies
  • Company:
  • Product:
  • Acronym-Abbreviation:
Collect to Blossary

Member comments

You have to log in to post to discussions.

Terms in the News

Featured Terms

Harry8L
  • 0

    Terms

  • 0

    Blossaries

  • 1

    Followers

Industry/Domain: Military Category: Navy

Mistral helicopter carriers

The Mistral helicopter carriers are a class of large amphibious assault ships that are designed for force projection and command. The French made ...

Contributor

Featured blossaries

The National Park of American Samoa

Category: Geography   1 1 Terms

Everything Football Related

Category: Sports   1 6 Terms