Re: Lithium palladium vs. normal palladium
This is true when printing digial negatives, but it is not necessarily correct when working with digital negatives. If one is working with a very precise system of making digital negative it is possible to use virtually all of the maximum density of the process by adjusting the curve. Working with Mark Nelson´s PDN system I have found it very easy to use up to 98%-99% of Dmax and still retain excellent shadow separation. Sandy > Please let me begin by indicating that the maximum black density > possible from the materials should not be utilized in the print. The > actual maximum black in a print (and this is likely so for any process) > is less dense than the capability of the materials. This can be > demonstrated printing from a calibrated step wedge. If the darkest tone > is printed to maximum possible density, visual discrimination will be > lost between the other dark steps. Attempting to correct this in the > negative will likely lead to overexposure, hindering the highlight > values. Just as film ‘works’ within a certain range, so too the print > materials have their range.> -- > Jeffrey D. Mathias > http://home.att.net/~jeffrey.d.mathias/ > >
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