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 ?
Estimation of the ISO speed with which portrait was shot (Table 5) shows that the photographers-experts portraits taken with ISO 400/27 and ISO 3200/36 generally evaluated as photographs taken with lower sensitivity, which is especially expressed in portraits taken with the ISO speed of ISO 3200/36 (not a single photographer-expert did not estimate that portraits were shot with the sensitivity of ISO 1600/33 or more).
Generally, mark of the black and white portrait photographs wasn't in the essential dependence on the ISO speed used while shooting (Table 1).
The result is a sensor, like the company's 16MP MT9H004, that offers the best possible noise performance over all ISO speed conditions.
1-megapixel APS-C size CMOS image sensor and the powerful new DIGIC 4 image processor, the Canon EOS Rebel T1i camera provides ISO speeds from ISO 100 up to ISO 3200 in whole stop increments, along with two additional high-speed ISO settings - H1: 6400 and H2: 12800.
With the combination of its improved CMOS image sensor and the powerful new DIGIC 4 image processor, the Canon EOS 5D Mark II camera provides ISO speeds from ISO 100 up to ISO 6400 in 1/3-stop increments, along with two high-speed settings - H1 and H2 - of ISO 12800 and ISO 25600, respectively, as well as a low-speed setting of ISO 50.
Image quality is nothing short of superb, with low noise at fast ISO speeds, while skin tones and textures are delivered exceptionally well in low light conditions.
Lenses in the order of 20 - 135mm should be ideal to capture the comet if it achieves naked eye visibility ISO speeds of 400 upwards and exposures of between 1 to 10 seconds or so should produce results.
Powered by the UF Ultra Fast Hybrid Cam, PSE's Omen Pro produces advertised ISO speeds reaching 366 fps.
Working with 4 A/D converters to provide 14-bit image processing for smooth tonal gradations and natural looking colours as well as advanced Noise Reduction at higher ISO speeds.
complement while vid 1080Im sho noi wh tex ex ligh The compact Image quality is nothing short of superb, with low noise at fast ISO speeds, while skin tones and textures are delivered exceptionally well in low light conditions.
Compared to ink jet all-in-ones priced at $399 or less, as of January 2011, based on manufacturers' rated ISO speeds or independent testing.
Compared to inkjet multifunction printers priced at $499 or less, as of January 2011, based on manufacturers' rated ISO speeds or independent testing.