Assertion: lens | /r/CapableOf | show heavy coma
Facets:
value: at f/1.4
type: TEMPORAL
Source sentences:
text: For example, if a lens shows heavy coma at f/1.4, stopping down the lens to something like f/2.0 or f/2.8 can dramatically improve its coma performance.
text: Lenses that exhibit heavy coma can show bright, sharp points of light in the center of the frame, which become significantly blurrier towards the edges of the frame.