Assertion: modern eyepiece | /r/CapableOf | yield sharp images
Facets:
value: completely
type: DEGREE
value: with an f/4 telescope
type: OTHER
Source sentences:
text: With a relatively low f-ratio telescope, such as an f/4 optical tube, only the best modern eyepieces will yield completely sharp images all the way out to the edge of the field of view.
text: With an f/4 telescope, only the best modern eyepieces will yield completely sharp images from out to the edge of the field of view.