Agfa motion picture topics (Apr 1937-June 1940)

Record Details:

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Density 0.47 Fig. 1-a I f — Graininess records of different types of emulsions of approximately the same density. The records arc arranged according to increasing sensitivity and graininess. transparency fluctuation in per mil. i The comparison of G-values shows that they agree qualitatively very well with the subjective experience. They demonstate, however, a number of rather interesting facts at closer inspection. F rom the previous description it is obvious that the smallest detail in a graininess record is equivalent to the size of a single grain and it is interesting to find on the records that the shape of the smallest detail varies considerably with the type of emulsion I o