Assertion: microscope's condenser | /r/HasProperty | intended for use
Facets:
value: with oil-immersion objectives
type: PURPOSE
value: with "dry" objectives
type: CAUSE
Source sentences:
text: Those condensers that have a numerical aperture value of 0.95 or less are intended for use with "dry" objectives.
text: However, flip-top condensers that have a numerical aperture greater than 0.95 are intended for use with oil-immersion objectives and they must have a drop of oil placed between the bottom of the microscope slide and the condenser top lens when examining critical samples.