Assertion: reticle eyepiece | /r/CapableOf | reveal more coma
Facets:
value: at the edges
type: LOCATION
Source sentences:
text: Regarding sharpness, depending on your telescope's focal ratio, a cheap wide field won't show pinpoint stars to the edge, but also note that there is some coma present in your SCT, and a widefield eyepiece will reveal more coma at the edges since coma size is linearly proportional to apparent field of view.