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.
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Entertainment
- Category: Movies
- Company:
- Product:
- Acronym-Abbreviation:
Other Languages:
Member comments
Terms in the News
Featured Terms
Nevsky, Alexander
Prince of Novgorod (r.1236-63). He saved Novgorod from attack by the Mongols in 1240 by becoming their vassal. He was rewarded by appointment as ...
Contributor
Featured blossaries
General
0
Terms
5
Blossaries
5
Followers
The Ultimate Internet Blossary
Browers Terms By Category
- Wine bottles(1)
- Soft drink bottles(1)
- Beer bottles(1)
Glass packaging(3) Terms
- Industrial lubricants(657)
- Cranes(413)
- Laser equipment(243)
- Conveyors(185)
- Lathe(62)
- Welding equipment(52)
Industrial machinery(1734) Terms
- Radiology equipment(1356)
- OBGYN equipment(397)
- Cardiac supplies(297)
- Clinical trials(199)
- Ultrasonic & optical equipment(61)
- Physical therapy equipment(42)
Medical devices(2427) Terms
- Material physics(1710)
- Metallurgy(891)
- Corrosion engineering(646)
- Magnetics(82)
- Impact testing(1)