Assertion: focal length lens | /r/HasProperty | telephoto lenses
Facets:
value: often
type: TEMPORAL
value: informally
type: MANNER
Source sentences:
text: Long-focal-length lenses are often informally referred to as telephoto lenses although this is technically incorrect: a telephoto lens specifically incorporates the telephoto group.
text: Long-focal-length lenses are often informally referred to as telephoto lenses although this is technically incorrect: a telephoto lens specifically incorporates the telephoto group.