Magnification Rules

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Magnification Rules.

The Magnification Rules includes 15 cm scales (1.0, 1.05, 1.10, 1.15, 1.20, 1.25, 1.30, 1.35, and 1.40) magnified in increments of hundredth from 1.0 to 1.75.  One scale will correspond to the magnification of most films to allow direct measurements.  All scales are printed on clear Mylar and can be superimposed on the area of interest, enabling measurements to be taken directly on the film.