Assertion: telescope's design | /r/CapableOf | use spherical primary mirror
Facets:
value: as in the schmidt camera
type: LOCATION
value: in place of a parabolic one
type: OTHER
Source sentences:
text: The design uses a spherical primary mirror in place of a parabolic one, with spherical aberrations corrected by sub-aperture corrector lens usually mounted inside the focusser tube or in front of the secondary mirror.
text: As in the Schmidt camera, this design uses a spherical primary mirror and a Schmidt corrector plate to correct for spherical aberration.