Assertion: film | /r/HasAspect | a number of disadvantages
Facets:
value: as a scientific detector
type: MANNER
Source sentences:
text: Film has a number of disadvantages as a scientific detector: it is difficult to calibrate for photometry, it is not re-usable, it requires careful handling (including temperature and humidity control) for best calibration, and the film must physically be returned to the laboratory and processed.