Assertion: e lens | /r/CapableOf | focus helicoid
Facets:
value: of brass helicoids
type: OTHER
value: of enameled brass barrels
type: OTHER
value: as the manual focus
type: MANNER
Source sentences:
text: From what I've seen Series E lenses typically had anodized black aluminum barrels and focus helicoids instead of enameled brass barrels and brass helicoids as the manual focus Nikkors do.