f-stop

(ĕf′stŏp′)n.1. Abbr. f/ A camera lens aperture setting that corresponds to an f-number.2. See f-number.

[f(ocal length) + stop.]

f-stop

n (Photography) any of the settings for the f-number of a camera

f-stop

or f stop

(ˈɛfˌstɒp)

n. the setting of a camera lens aperture, as indicated by an f number.

Translations

f-stop

any of the settings for the f-number of a camera

f-stop

(Focal-STOP) The f-stop is the "aperture" opening of a camera lens, which allows light to come in. It also determines how much is in focus in front of and behind the subject (see depth of field). The f-stop is one of the two primary measurements of a camera lens. The other is the "focal length," which establishes how much of the scene is in view (see focal length).

Length Divided by Opening
The f-stop is the focal length of the lens divided by the diameter of its opening. Each consecutive f-stop halves the opening of the previous. For example, an 80mm lens with its f-stop set to f8 means that the optics inside the lens create a diameter equivalent to 10mm. Changing the f-stop to f16 creates a diameter of 5mm. See focal length.

单词	f-stop
释义	f-stop f-stop f-stop (ĕf′stŏp′)n.1. Abbr. f/ A camera lens aperture setting that corresponds to an f-number.2. See f-number. [f(ocal length) + stop.] f-stop n (Photography) any of the settings for the f-number of a camera f-stop or f stop (ˈɛfˌstɒp) n. the setting of a camera lens aperture, as indicated by an f number. Translations f-stop f-stop any of the settings for the f-number of a camera f-stop (Focal-STOP) The f-stop is the "aperture" opening of a camera lens, which allows light to come in. It also determines how much is in focus in front of and behind the subject (see depth of field). The f-stop is one of the two primary measurements of a camera lens. The other is the "focal length," which establishes how much of the scene is in view (see focal length). Length Divided by Opening The f-stop is the focal length of the lens divided by the diameter of its opening. Each consecutive f-stop halves the opening of the previous. For example, an 80mm lens with its f-stop set to f8 means that the optics inside the lens create a diameter equivalent to 10mm. Changing the f-stop to f16 creates a diameter of 5mm. See focal length. MedicalSeedepth of fieldFinancialSeeexposureThesaurusSeefocal length
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