focal length
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focal length

n. Abbr. f

The distance from the surface of a lens or mirror to its focal point. Also called focal distance, focus.

focal length, distance

(Physics / General Physics) the distance from the focal point of a lens or mirror to the reflecting surface of the mirror or the centre point of the lens

focal length (f

The distance between the optical center of a lens or mirror to its focal point.

ThesaurusLegend: Synonyms Related Words Antonyms

Noun

focal length - the distance from a lens to its focus

focal distance

distance - the property created by the space between two objects or points

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focal length (redirected from Front focal length)

focal length
(redirected from Front focal length)