hasFocalRatioRange
P7230
predicate
Indicates that an entity is associated with a range of possible focal ratios, specifying the minimum and maximum f-number values it can have.
Sample triples (2)
| Subject | Object |
|---|---|
| Dall–Kirkham telescope design | typically long focal ratios → |
| Ritchey–Chrétien reflector | approximately f/6 to f/10 → |