Assertion: eyepiece's field | /r/CapableOf | fall below 50°
Facets:
Source sentences:
text: With focal lengths longer than 32 mm, the available field of view falls below 50°, which most amateurs consider to be the minimum acceptable width.
text: With focal lengths longer than 32 mm, the available field of view falls below 50°, which most amateurs consider to be the minimum acceptable width.