noun · frequent

f-number

f-number · f-numbers

The ratio of the focal length of a lens to its diameterThe ratio of the focal length of a lens to its diameter; a measure of the light-gathering ability of the lens.

Meaning

1 senses

The ratio of the focal length of a lens to its diameter; a measure of the light-gathering ability of the lens.

Forms

plural: f-numbers

Singular	f-number
Plural	f-numbers

regular

Synonyms

1 synonyms

f-value

Word family

1 related words

Relatedf-stop