Assertion: telescope's mirror | /r/HasProperty | combined with lense
Facets:
Source sentences:
text: The catadioptric telescope which uses mirrors combined with lenses to form an image.
text: Low focal ratio primary mirrors can be combined with lenses that correct for coma to increase image sharpness over the field.
text: The catadioptric telescope which uses mirrors combined with lenses to form an image.