Assertion: eyepiece's design | /r/HasProperty | many different
Facets:
Source sentences:
text: Eyepieces come in many different designs, and they all have names -- Huygenian, Ramsden, Kellner, Orthoscopic, Erfle, Plossl, Koenig, Nagler, and many others.
text: Eyepieces for telescopes come in many different designs to fit many different budgets.