Assertion: single curtain | /r/CapableOf | remain popular
Facets:
value: in large and medium format cameras
type: OTHER
value: for the next half-century
type: TEMPORAL
Source sentences:
text: Single curtain, vertical travelling, fixed-width slit, focal-plane shutters with adjustable spring tension and slit-width selection remained popular in large and medium format cameras for the next half-century.