film speed


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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 ?
The results of this study support the use of rectangular collimation with any film speed to enhance image quality, encourage practitioner acceptability, and thereby minimize radiation dose to the patient.
"The higher the film speed, the greater the latitude for picture-taking.
Ricci, whose new film Speed Racer is out in the summer, once claimed her best friend is her mum.
Her latest film Speed Dating is proving a smash hit with the critics.
Working with accomplished editor Jay Rabinowitz and lenser Ben Kutchins, the director, roughs up the visual field with lots of jump cuts, dissolves and freeze frames, playing with film speed, focus, stock exposure and post-synched dialogue.
Having worked through lens, aperture, colour, movement, Brown concludes his book by dealing with issues such as lighting, film speed, special effects, and behaviour and procedures on set.
You will need to use a slow film speed (50-200ASA) for desert or seaside destinations as light here will rarely be a problem, whereas a trip to a rainforest will demand fast film (400-1600ASA).
The reciprocating jaw motion at the heart of the TG350RC's design delivers features such as constant film speed, better back and cross seals, consistent bag length, and reduced strain on the film.
LEWINTER: "Consumers are moving up in film speed due to quality improvements in higher-speed film.
Sandra Bullock told me she celebrated her first big film Speed by going out to buy her parents a sedan.
The new 1600 film would be PJC as the last letter denotes the film speed in Ektapress and the new film is called Ektapress Plus.
The milk float race was a spoof on the film Speed and Kilbane will have to concentrate on a different kind of acceleration at Old Trafford today when he clashes with the Portuguese flier.