Also, with graded papers you can adjust contrast with the color of light you project through the negative. I have two theatre gels, one a deep sky blue and one a medium green that I use above the negative to effect a color shift in the light source. When using the deep blue for overall or even selective manipulation you can increase contrast by about 1/3 of a grade. Likewise, with the green filter you can lessen contrast nearly ½ grade with pure green light.
How do you explain that behaviour? I know that contrast manipulation in VC paper is possible because of the two-plus emulsion layers that have different inherent contrast and different spectral sensitivity, but why does it work too on graded paper? I thought graded papers only had one characteristic curve, and that development was the only way to alter it.
Steve, I've given this some thought. Could it be that there is a contrast reciprocity failure in here somewhere if the exposure times vary over a broad range?
PE
..is there a "quality" difference, in regards to image tone and depth between traditional graded papers and the various Multicontrast type of papers?
I used graded paper for all of my serious work until I discovered Polywarmtone. I, too, found it equal to graded papers. I will miss it.
I've also found that with some papers contrast can be reduced by reducing the amount of agitation while the print is in the developer. Finding the "enough" point is the key.
juan
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