Response to Mortensen and Gradation

I have found that when needing to do minus development, I use the middle of the film curve to take advantage of the linear separation of values. If you use the lower end of the curve, you end up with muddy shadows. Compression happens in the shadow values first so you have to compensate by moving the shadows way up the curve. Then when you compress you compress most of the image linearly. The dodge, and reburn the shadows with a higher filter. James

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