Abstract
THE detail-recording ability of a photographic emulsion may be tested by exposing it through a very narrow slit, and, after processing, measuring the variation of density with distance, x, from the centre line of the image. When the scale of density is transformed into a scale of effective intensity of illumination, the result is the line-spread function, B(x).
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LEWIS, N. Line-Spread Functions of Photographic Emulsions. Nature 189, 909 (1961). https://doi.org/10.1038/189909a0
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DOI: https://doi.org/10.1038/189909a0
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