Abstract
This paper introduces a device for measurement of the modulation transfer function of photographic materials. The device is a realization of the method based on the incoherent imaging of a rectangular parallel wave grating with continuously varying spatial frequency in space to the photographic material under test by means of an auxiliary photographic objective of known properties. The theory of that method is shortly introduced, the principle of measurement is explained, the realized device is described and evaluated and some results of measurement are shown.
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