Assertion: zoom lens | /r/HasProperty | a 4:1 or 4×
Facets:
Source sentences:
text: For example, a zoom lens with focal lengths ranging from 100 mm to 400 mm may be described as a 4:1 or "4×" zoom.
text: For example, a zoom lens with focal lengths ranging from 100 mm to 400 mm may be described as a 4:1 or "4×" zoom.