Assertion: eyepiece's lens | /r/HasProperty | objective lenses
Facets:
Source sentences:
text: The lenses are "objective lenses" that are mounted in front of the microscope's last objective element.
text: The first lens is called the objective lens, and has typical magnification values from 5× to 100×.
text: The lens in front, known as the objective lens, focuses an image; the lens in back, known as the eyepiece lens, magnifies that image.