Assertion: catadioptric telescope | /r/CapableOf | use lense
Facets:
value: according to astronomics.com
type: OTHER
value: to fold optics
type: PURPOSE
Source sentences:
text: Catadioptric telescopes use both lenses and mirrors to fold optics and form an image.
text: According to Astronomics.com, a catadioptric telescope uses both mirrors and lenses but folds conveniently so it is portable.