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What is an aperture?

Updated: 10/3/2023
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8y ago

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Aperture measures the amount of light that enters the camera and exposes the film. Aperture values correspond to the amount of available light and the desired shutter speed. Aperture also controls depth of field.

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8y ago
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15y ago

An aperture is an opening like a hole or slit (usually in a wall) In the context of Photography the aperture is the adjustable opening which governs the amount of light passing through the lens.

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15y ago

The lens diaphragm opening inside a photographic lens is referred to as Aperture. The size of the diaphragm opening in a camera lens regulates the amount of light that can pass through onto the film inside the camera the moment when the shutter curtain in camera opens during an exposure process. The size of an aperture in a lens can either be a fixed or the most popular form in an adjustable type (like an SLR camera). Aperture size is usually calibrated in f-numbers or f-stops. i.e. those little numbers engraved on the lens barrel like f22 (f/22),16 (f/16), f/11, f/8.0, f/5.6, f/4.0, f/2.8, f/2.0, f/1.8 etc. Each of this value represents one time the amount of light either more or less in quantity. Meaning to say, f/16 will let in 1X the amount of light than a diaphragm opening of f/22 and so forth; while on the other hand, an aperture of f/4.0 will let in 1X lesser than that of f/2.8 etc. You can see an image of the aperture setting explained here http://www.mir.com.my/rb/photography/fototech/apershutter/imagesapertureillus.jpg

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12y ago

well aperture can mean like a hole or a gap

or it can mean like the camra lens thing that opens and closes

Aperture in the microscope- It is the hole that lets in light onto the stage from the mirror.

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12y ago

Aperture "holes" also know as "f-stops" or "f-numbers" are used to adjust how much light enters the shutter and hits your film and or image sensor. It also effects depth of field. A f-stop of about f/2 will mean your f-stop is nearly completely open. And also decreases depth of field, the area of sharp focus in your photo.

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12y ago

The aperture is the hole in the shutter that lets in light to take your photo, affecting exposure.

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12y ago

letting light into the camera

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"Aperture" means "opening".


What is 'apature' a synonym for?

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Aperture Foundation was created in 1952.


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Maximum aperture is the maximum amount you can get a hole to open.


What does the aperture dial do on a camera?

The aperture ring changes the lens aperture which controls how much light reaches the film or digital sensor. A large aperture f/1.4 to f/2.8 = lots of light, fast shutter speeds, narrow depth of field A small aperture f/9+ = much less light, slower shutter speeds, wide depth of field


What is the aperture of a spherical lens?

The word aperture does not apply to the lens itself. In a camera, the aperture is the diameter of the shutter opening which allows light to reach the lens.


Can you use a aperture on a digital camera?

An aperture is a hole where light travels through. Therefore in any camera there is always an aperture - including digital cameras - even if it is fixed


Do the aperture controls adjust the length of time the light strikes the sensor?

No, the aperture controls adjust the size of the opening that light enters the camera through (see image above, left maximum aperture setting, right minimum aperture setting).


Is aperture real?

No.