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.

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.

film speed

(film spēd)
Relative sensitivity of film emulsion to light or radiation exposure; is inversely related to detail resolution.
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.