Assertion: shutter's speed | /r/HasProperty | measurable
Facets:
value: in most cases
type: TEMPORAL
value: often
type: DEGREE
Source sentences:
text: The actual shutter speed of a leaf shutter is measurable as the displacement of the leading edge of the leaf as it moves in time from the center of the shutter to its open position.
text: For kids, people and pets not displaying their talents on a field, a 1/250 speed is often sufficient.
text: The actual shutter speed of a curtain shutter is measurable as the displacements of the leading edges of two curtains as they move across the shutter from one side to the other.
text: On the other hand, when capturing car lights as light trails, a shutter speed of 10 to 20 seconds should be sufficient in most cases where there is relatively heavy traffic.