Assertion: lens's amount | /r/HasProperty | reduced to minimal levels
Facets:
value: by f/4
type: TEMPORAL
Source sentences:
text: As you can see from the examples below, the EF-M 28mm Macro has a very slight amount of bokeh fringing wide open, which is reduced to minimal levels by f/4 and essentially gone at apertures of f/5.6 and narrower.