Assertion: lens's depth | /r/HasProperty | required
Facets:
Source sentences:
text: Stopping down lenses to the f/5.6 range often provides the best overall sharpness for most lenses and f/8 is used if more depth of field is required.
text: Stopping down lenses to the f/5.6 range often provides the best overall sharpness for most lenses and f/8 is used if more depth of field is required.