LLexicon Workbenchv2.1

Nounverified MWEverified

F Number

nounverified·updated May 18, 2026

GlossaryL1 — what DictionaryL2 — how used ThesaurusL3 — relations Universaleverything

the ratio of the focal length to the diameter of a (camera) lens system

MWE

Classifications

per-axis with provenance

Entity Type

Unknown—authoritativeglossary_import_default_pending_classifier

?unassignedlast reviewed —

Sensitivity

unclassified

Information Class

unclassified

Variants

4 surface forms

synonym: speed
plural: F Numbers
possessive: F Number's
pluralpossessive: F Numbers'

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