Assertion: telescope's lens | /r/HasProperty | achromatic
Facets:
Source sentences:
text: The achromatic telescope is a refracting telescope that uses an achromatic lens to correct for chromatic aberration.
text: An Achromatic telescope uses an achromatic lens to correct for this.
text: What is considered the first practical clock-driven telescope was constructed in 1824, Joseph von Fraunhofer's ‘Great Dorpat’ refractor, a telescope that combined other innovations, such as an achromatic lens and Fraunhofer's "German equatorial mount", making it the prototype of all future large refracting telescopes.