Online Tool for curve plotting and analyzation

With this free, online tool, you can just input the 21-Step tablet Density measurements you made. The Tool will assume 0,15 log H steps. It is meant to be used with relative testing, this means you don't know the (luxs) exposure intensity that was used to expose the different densities. You can assign one curve (the one you developed for box speed) to your reference and enter the speed. Based on this, my tool will calculate the relative speed for each curve. It also shows the contrast index...

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