Assertion: telescope's tube | /r/HasProperty | a full-aperture corrector lens
Facets:
Source sentences:
text: In its usual configuration, the Maksutov-Cassegrain consists of a short tube with a spherical concave primary mirror, a full-aperture corrector lens which is a weak negative meniscus lens, and a small convex secondary mirror on the inside of the corrector plate.
text: In its classical configuration, it consists of a short tube with a spherical concave primary mirror, a full-aperture corrector lens which is a weak negative meniscus lens, and in most cases, it has a small convex secondary mirror formed by evaporating an aluminum mirror spot on the optical axis on the inside of the corrector plate.