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The aperture is the opening formed by the blades of the iris or diaphragm in the lens, through which light passes to expose the film. Aperture size is usually given in f-numbers, the larger the number, the smaller the opening. Aperture size together with shutter speed determine the amount of light falling on the film (exposure). The aperture is sometimes called the "stop".

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Vārdšķira: noun
Sinonīms(-i):
Blossary: A Glossary of Photographic Terms
Nozare/domēns: Photography
Category: Lenses; Photography techniques
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саңылау лампасы

Eyewear; Optometry; Contact lenses; Eye surgery

A microscope using various magnifications combined with a strong light that can be focused into a slit for examining the eye.

қара саңылау

Astronomy; Galaxy

A black hole is the circular dark space that sits at the center of a galaxy which absorbs everything including light so nothing can be reflected or escaped from it. Around a black ...

тиісті саңылау

Photography; Professional photography

measurable diameter of the diaphragm divided by the focal length of the lens in use and expressed in terms of "f" numbers, marked on the lens barrel.

асфералық линза

Photography; Lenses; Photography techniques

A lens with a curved, non-spherical surface. Used to reduce aberrations and achieve a more compact lens size. With a spherical lens, rays travelling from the lens periphery create ...

көру бұрышы

Photography; Lenses; Photography techniques

The area of a scene that a lens can cover. The focal length of the lens determines the angle of view. A wide-angle (short-focal-length) lens includes more of a scene than a ...

көру бұрышы

Photography; Photography techniques

The area of a scene that a lens can cover. The focal length of the lens determines the angle of view. A wide-angle (short-focal-length) lens includes more of a scene than a ...