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At Cone Editions and InkjetMall we have a unique algorithm for fixing inherent measurement errors in spectrophotometers that is not an average of multiple readings or a line-average of an array of...

We sell a dedicated "selenium" Piezography inkset at InkjetMall. We will also be releasing the new "pro" inkset that will enable true split-toning of monochrome inks as well as industry-leading dMax...

At IJM we calibrate at 256 steps but in 64bit computational space. It's complicated but the result is the result. Everything else out there is simply sub-par and noticeably so when you visually look...

I recommend using Photoshop, Photoshop Elements, or Lightroom for working with Piezography and QuadtoneRIP for various reasons but one being full support for the gamma 2.2 workflow.

Regards,...

I have P800 carts in now that I'm testing. There are some hiccups and QC cycles that need to happen but we hope to launch soon.

However, it does look like there will need to be some work done...

Frankly this is up to one's personal opinion. It's certainly not up to the Piezography standard . . . as set in all previous printers, applications, and dither-patterns so far.

best,
Walker

yeah, all ink.

We test with our eyeballs

@sandy the new PiezoDN has the same smoothness (possibly more) as classic Piezography Digital Negatives but enables true linearization + custom tuning directly in the .quad

cheers,
Walker

Of the group of people who bought the system (at launch yesterday) I'm not sure who has a 4900. I'll send the call out.

In the interim I'll work on getting these densities translated.

best,...

Adding noise essentially negates the qualities of dedicated monochrome ink systems (my opinion only).

You might as well go with K3 at that point as this is essentially what K3 does (by spacing the...

There is no banding with Piezography inks. Partly its in the ink chemistry, partly in how we build the ink overlaps for the .quads that are built for Piezography, and partly its how we linearize.
...

I would love to but do not have the printer in-house that we R&D'd silver densities for. We actually donated that to Maine Media Workshops (our one epson 4900). The 9900 that we are currently doing...

"it appears that the use of the droplet to correct a Cone profile requries a lot more points than would be needed for the first linearization with regular QTR tools."

It actually doesn't "need"...

@bobcarnie yeah, we teach this. It's really the best way sometimes for people to come actually see what is possible. I think all our group workshops are sold out (they sold real quick so we increased...

@lesleynowlin It's certainly a bit of time to set it up.

It requires a kit: Piezography ink, the cartridges, the software. All of the instructions can be downloaded right from each product and we...

I am not here to defend or compete with anyone's system. Just wanted to add to the conversation. I'm super excited about PiezoDN because I think it hits a sweet spot of quality and simple...

There is a screen-shot I included in the about section of the PiezoDN website that shows the smoother tool in action. I intentionally included SUPER rough reversals in there so you can see what it's...

Huh. Than a guess the last 300+ prints I've seen run on 129 linearized PiezoDN .quads aren't real. ;)

But for sure, there are "reversals" that show. The trick is to algorithmically correct for...

Both SCP600 and SCP800 have dither problems with QTR no matter what ink and dig-neg is a no-go until that is fixed. Working on tracking this down.

best,
Walker

@michaelmutmansky None of the patches are duplicate. We error correct in a different way. In fact we've error corrected in a different way since 1994 which is why we've been linearizing Piezography...

@LesleyNowlin just fyi, the CISS that comes with the 1430 may make Piezography printing easier depending upon how much you print. We haven't released it yet but shot the instructions video and should...

Launching tomorrow. I will probably be programming until the last minute.

best all,
Walker
InkjetMall R&D (formerly Light Work, Latitude, Black Point Editions, etc)

I guess the most important part of PiezoDN is that the tools included enable you to linearize a .quad directly from 129 printed patches using Roy Harrington's QTR-Linearize-Quad. This is a...

I'm the one who R&D'd the system with Jon and did all the math and programming. (I've been a lurker here for a long while fyi.)

PiezoDN is drastically different than any other dig-neg process as...

Just a quick follow-up note here. I've run drum-scanning as part of Black Point Editions' business for years now. It is approx 50% of our business at this point. Although I'm no-longer directly...