• n.
    ⦿the ratio of the focal length to the diameter of a (camera) lens system
    lexical concept

Semantic relations

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Diagram
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Lexical context

wn:part of speechnoun
ontolex:lexicalized sense
  1. enl:f number
  2. enl:focal ratio
  3. enl:speed
  4. enl:stop number
wn:interlingual indexili:i109535

Other

skos:is in schemeOpen English WordNet
rdfs:label
  • f numberfocal ratiostop number
  • f numberfocal ratiospeedstop number