noun Date: 1946 a camera lens aperture setting indicated by an f-number

New Collegiate Dictionary. 2001.

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  • F-stop — FilmM F stops are numbers that refer to the size of the hole that let’s light into the lens, otherwise known as the aperture. It’s counterintuitive, but the larger the F–stop number, the less light is allowed in the lens. The less light that is… …   Audio and video glossary

  • F-Stop — WikiV (F Stop also known as f number or f system) The speed or ability of a lens to pass light. It is calculated by dividing the focal length of the lens by its diameter. The f stop also is a factor in more areas of focus in the image known as… …   Audio and video glossary

  • f-stop — /ef stop /, n. Photog. the setting of an adjustable lens aperture, as indicated by an f number. Also, f stop. * * * …   Universalium

  • f-stop — noun Any of the discrete steps or stopping points for adjusting the aperture of a lens, either marked on a ring on the lens and adjusted by rotating that ring or marked in the display of a digital camera and adjusted by buttons or touch sensitive …   Wiktionary

  • f-stop — or f stop [[t]ˈɛfˌstɒp[/t]] n. pht the setting of a camera lens aperture, as indicated by an f number …   From formal English to slang

  • f/stop —    In photography, the focal length of a camera divided by the diameter of its aperture. Knowing the f/stop, a lightmeter can measure the light on the subject, and calculate the exposure time …   Glossary of Art Terms

  • f-stop — /ˈɛf stɒp/ (say ef stop) noun → f number. {f(ocal length) + stop} …   Australian English dictionary

  • f-stop — F/A/V the ratio of focal length to the effective diameter of a lens; also called f number, it represents how much light is able to pass through the lens. TV Numbers corresponding to variable size of a camera s iris opening, and thus the amount of …   Audio and video glossary

  • f-stop — noun Photography a camera setting corresponding to a particular f number …   English new terms dictionary

  • F Stop — VP Also known as the Aperture, F Stops are the numbers that refer to the size of the holes that let light into a lens …   Audio and video glossary

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