Normal Plus Development

If the contrast of the subject you are photographing is too flat (for example, a dark interior or a cloudy day) you should still expose for the shadows, but in this case, you should also increase the development time (above Normal Development) to increase the density of the negative's highlights. This effect is called Expansion, or Normal Plus Development, symbolized by N+. The resulting negative will have much more contrast than the original subject and will print as if the contrast of the scene were greater than it actually was.

FIGURE 12 The effect of Normal and Normal Plus Development on a low-contrast subject.

Figure 12A shows a negative exposed to a very low contrast subject. Figure 12B illustrates that Normal Development results in a flat, low-contrast negative and print. Figure 12C shows that Normal Plus Development increases the density of the negative's highlight areas. The resulting print has Normal contrast.

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