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  Glossary Of Photography Terms [1]
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Aperture  Aperture refers to the opening in a lens through which light passes to reach the camera's sensor. It is measured in f-stops, with lower f-stop numbers indicating larger apertures and higher f-stop numbers indicating smaller apertures.

Aperture plays a crucial role in photography by controlling the amount of light that enters the camera, which affects the exposure of the image.

A larger aperture (smaller f-stop number) lets in more light, resulting in a brighter image and shallower depth of field, where the foreground is sharp while the background is blurred.

Conversely, a smaller aperture (higher f-stop number) allows less light, resulting in a darker image and a greater depth of field, where more of the scene is in focus.

Aperture also influences the quality of the out-of-focus areas in an image, known as bokeh.

 
 
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