film speed

(redirected from Film sensitivity)
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film speed

the relative sensitivity of film emulsion to light or radiation exposure; speed is inversely related to detail resolution.
Farlex Partner Medical Dictionary © Farlex 2012

film speed

The sensitivity of a photographic medium (e.g., a radiograph) to light or radiation. The film speed is determined by: the size of its silver halide crystals; the thickness of the emulsion; and the presence of radiosensitive dyes. Films are described as “fast” if the film requires little radiation to produce an image and “slow” if more radiation is needed.
Medical Dictionary, © 2009 Farlex and Partners

film speed

(film spēd)
Relative sensitivity of film emulsion to light or radiation exposure; is inversely related to detail resolution.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
However, the optimal length of expo sure is determined by a combination of film sensitivity, camera design, lens configuration, lighting and subject distance.
12GB) 1998 Philips LMS reaches milestone of 20,000 drives and media shipments of 500,000 12-inch optical platters 1999 In January, Plasmon acquires Philips LMS 1999 In July, Plasmon acquires 12-inch automation business from Cygnet 1999 Fourth Quarter, Plasmon LMS ships fourth generation 12-inch Optical Drive (third generation with dual head), capacity 30GB Life Expectancy Potential for Data Normal Conditions Extreme Conditions Phase Change Write a ->c unwritten thin 1mW change in write 1mW change in write film sensitivity after 100 sensitivity after 2000 years hours @ 70[degrees]C 85% R.H.
With Kodak Technical Pan 2415, pre-flashing increases film sensitivity three or four times.