The Precision Digital Negatives eBook in PDF format, Curve Calculator I Excel Spreadsheet, and Calibration Palettes—download entire package. 
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Mac version of Standalone Database Program for performing and storing Calibrations for Precision Digital Negatives. NOTE: PDN eBook and film 31 Step Tablet REQUIRED to use this product! 
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Windows Version of the Standalone Database Program for performing and storing Calibrations for Precision Digital Negatives. NOTE: PDN eBook and film 31 Step Tablet REQUIRED to use this product! 
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A 31-Step Tablet with 31 steps of 1/3 stop each up to Log 3.0 transmission density. This step tablet, designed by Mark Nelson, has many nice features that make it easier to work with the PDN calibration. The step tablet is produced for PDN by Stouffer Ind 
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The Precision Digital Negatives Aquatint Screens for Photopolymer Gravure and Traditional Copper Plate Photogravure and intaglio printing are very high quality Stochastic (random dot) film screens in a variety of sizes and resolutions. 
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Telephone Consultation regarding calibration and other PDN issues. Email Mark Nelson at ender100@aol.com after purchasing a block of time. One unit is 15 minutes of consultation for $25. You may purchase more than one unit. 
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