Tag Name: digital-positives

Black and White torture test

posted on: September 15th, 2014

This is a rather large tiff file used to test the smoothness of all your digital negative/positive work. In particular, the positive and negative circle gradients have a way of making ‘ramps’ in your correction curves very obvious.

categories:  alternative processes, calibration, digital negative, photography, photoshop   tags:  alternative process, calibration, digital negatives, digital positives, photoshop, tips, download

QTR profiles for KM73 polymer plates

posted on: July 17th, 2014

Quadtone RIP profiles for making digital positives on the Epson R3000, 7800 and 1400 printers. These were created for use with the Toyobo KM73 flexographic plates. For more detailed information on the process go to polymerphotogravure.com.

categories:  alternative processes, polymer photogravure, digital positives   tags:  digital positives, polymer photogravure, alternative process, qtr

Pt/Pd printing resources

posted on: July 10th, 2014

A reasonably current list of resources for pt/pd printing.

categories:  alternative processes, digital negative, palladium printing, photography, platinum printing   tags:  alternative process, chemistry, digital negatives, digital positives, palladium, paper, printing, platinum

Ike's QTR curve creation script

posted on: June 10th, 2014

This is a photoshop script written by my good friend and computer maestro David Eisenlord that painlessly creates a gray-curve-linearization Photoshop curve that can then be directly loaded into the QTR ink profile that is being built. This curve takes the headache out of thinking in ‘negative space’ during the QTR calibration process. As in, oh wait, my highlights are too dark, so that means I need to add more ink, right?

This script helps to minimize some of the mental gymnastics involved. I use it in the QTR tutorial download on my site.

categories:  digital negative, calibration, photoshop   tags:  alternative process, calibration, digital negatives, digital positives, photoshop

51-step-tablet with levels (positive)

posted on: April 21st, 2014

Standard 51 step tablet annotated with levels in addition to gray percent. Used in calibration steps for polymer photogravure.

categories:  calibration, downloads, photography, workshop   tags:  calibration, digital positives, qtr