Assertion: mm lens | /r/HasAspect | maximum aperture of f/4.0
Facets:
value: at the 100 mm end
type: LOCATION
Source sentences:
text: For example, a 100 mm to 400 mm lens may have a maximum aperture of f/4.0 at the 100 mm end but will diminish to only f/5.6 at the 400 mm end of the zoom range.