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- Dictionaryaperture/ˈapətʃə/
noun
- 1. an opening, hole, or gap: "the bell ropes passed through apertures in the ceiling"
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In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane.
Oct 10, 2023 · As you move between bright and dark environments, the iris in your eyes either expands or shrinks, controlling the size of your pupil. In photography, the “pupil” of your lens is called aperture. You can shrink or enlarge the size of the aperture to allow more or less light to reach your camera sensor.
1. : an opening or open space : hole. entered the cave through a narrow aperture. 2. a. : the opening in a photographic lens that admits the light. b. : the diameter of the stop in an optical system that determines the diameter of the bundle of rays traversing the instrument. c.
APERTURE definition: 1. a small and often narrow opening, especially one that allows light into a camera 2. a small and…. Learn more.
Aperture definition: an opening, as a hole, slit, crack, gap, etc.. See examples of APERTURE used in a sentence.
In some contexts, especially in photography and astronomy, aperture refers to the opening diameter of the aperture stop through which light can pass. For example, in a telescope, the aperture stop is typically the edges of the objective lens or mirror (or of the mount that holds it).
Definition of aperture noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
An aperture is a narrow hole or gap. [formal] Through the aperture he could see daylight. Synonyms: opening, space, hole, crack More Synonyms of aperture. 2. countable noun. In photography, the aperture of a camera is the size of the hole through which light passes to reach the film. Use a small aperture and position the camera carefully.
noun. An opening, such as a hole, gap, or slit. American Heritage. An opening; hole; gap. Webster's New World. A usually adjustable opening in an optical instrument, such as a camera or telescope, that limits the amount of light passing through a lens or onto a mirror. American Heritage.
The aperture is an essential camera setting; in fact, you might even say that it’s where the magic happens in photography. It holds the key to unlocking sharpness and creative possibilities, plus it’ll help you capture images that are sufficiently bright.
