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Digital BW, The Print

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Re: Epson Pro3880 with troubled Photo Black ( PK ) for Piezography

2015-03-04 by richard@...

You can't use the 100% patch value to determine dmax of shade 1 inks. From all the sets of measurements I have done perfecting my profiling process and tools (maybe over a hundred in the last few months) there is a noticeable drop off between where the ink hits the dmax and the 100% patch. With the STS MK, (one set of measurements I have at hand) It can be as bad as dropping from 1.72 at the 40% patch to 1.55 at the 100% patch.

Here is a post I wrote last year about comparing the (older) MIS MK to the Piezo MK. Note that I made these measurements with my wonky 1430 and is the reason for the weird shaped curve. The 3800 with the Piezography shade 1 doesn't have the weird jump at the 10%-15% patches. I'm doing a follow-up post using a hybrid set using the STS MK, and the Peizo Carbon in shade 2-6. I think the Cone inks have a much better color and density distribution from shade to shade than the MIS inks (and can be trusted to be consistent from batch to batch).

Comparing Cone Piezography Shade 1 and MIS Ebony Shade 1



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