Assertion: catadioptric telescope | /r/HasProperty | optical system
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Source sentences:
text: A catadioptric telescope is an optical system that is optimized for producing images of objects at an infinite distance, and which incorporates both refractive type optics (lenses) and reflective optics (mirrors).
text: Catadioptric telescopes are optical telescopes that combine specifically shaped mirrors and lenses to form an image.