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Perhaps Shannon read it and did not understand, and this is why she is asking. Lets try to be helpful here.
Shannon, the ES contains all the tones your paper can print. So if from total black to paper white you have an ES of 1.2 that means that if your shadow fell on a density of 0.5 then you probably overexposed your negative, since a tone that has a value of 0.5 would be about the middle of your curve and it would correspond to a dark gray/middle gray. Not to a shadow tone of black. For simplicity lets say that you are basing your film speed on a point that is 0.1 above base+fog. the DR if your negative should be equal to your ES of the paper you are using (DR=ES) so your negative should have a total density from transparent to highlight of 1.3 (0.1+1.2). As you can see a density that falls on 0.5 is too high to be a shadow. I would guess a shadow should fall on the values of 0.2 to 0.4, but this is only a guess.
If you are doing your exposures and using the expodev and winplotter then you might try to adjust your personal speed point a stop down, maybe from a 2.4 value to a 2.6 value. If you are plotting by hand then probably you made a mistake placing the triangle thus getting overexposure.
Hope this helps. |
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