Assertion: eyepiece | /r/HasProperty | threaded
Facets:
value: for filters
type: PURPOSE
Source sentences:
text: What does it mean when an eyepiece says it is "threaded for filters"?
text: Virtually all eyepieces available today are threaded to accept filters (all but one brand I have ever encountered use a standardized thread
text: They are fully Multi-coated for maximum contrast and the eyepieces are threaded to accept standard GSO 1.25inch eyepiece filters.