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Exposure latitude is the extent to which a light-sensitive material can be exposed (overexposed or underexposed) and still achieve an acceptable result. [1] This measure is used for digital and analogue processes, e.g. optical microlithography or photography .
Low ISO Black & White: available: P: 6: B&W: Print: This film will produce a film negative and produce very fine grain. This blue-sensitive black-and-white film has very high resolution and incorporates a yellow dye, which is removed during processing, to provide very high sharpness. Blue Sensitive films need to be shot in daylight or using a ...
The intensity of a pixel is expressed within a given range between a minimum and a maximum, inclusive. This range is represented in an abstract way as a range from 0 (or 0%) (total absence, black) and 1 (or 100%) (total presence, white), with any fractional values in between.
In computing terminology, black-and-white is sometimes used to refer to a binary image consisting solely of pure black pixels and pure white ones; what would normally be called a black-and-white image, that is, an image containing shades of gray, is referred to in this context as grayscale. [2]
The first black-and-white feature film photographed entirely on panchromatic stock was The Headless Horseman (1922). [6] But early panchromatic stock was more expensive, had a relatively short shelf-life, and was more difficult for laboratories to process because it required working in total darkness.
The specified times apply to black/white film. Note that the times are approximate, and vary between different films and ASA numbers, but the table shows in general how the exposure time is adjusted. In photography , reciprocity is the inverse relationship between the intensity and duration of light that determines the reaction of light ...
The majority of black-and-white infrared art, landscape, and wedding photography is done using orange (Wratten #15 or 21), red (#23, 25, or 29) or visually opaque (#72) [d] filters over the lens to block the blue visible light from the exposure. Very dark-red (#29) filters block out almost all blue, and visually opaque (#70, 89b, 87c, 72 ...
An SNR less than 5 means less than 100% certainty in identifying image details. [5] [10] Yet another alternative, very specific, and distinct definition of SNR is employed to characterize sensitivity of imaging systems; see Signal-to-noise ratio (imaging). Related measures are the "contrast ratio" and the "contrast-to-noise ratio".