Re: Printer Profiling Issues
Re: Printer Profiling Issues
- Subject: Re: Printer Profiling Issues
- From: John Castronovo via colorsync-users <email@hidden>
- Date: Mon, 24 Jun 2019 23:51:54 -0400
- Importance: Normal
I've used Onyx a lot to make profiles and I agree that setting ink limits
has much to do with it. Onyx is a powerful tool but can easily mislead us
when we're setting ink limits and restrictions. Glossy canvas in particular
has issues due to reflections. I find Onyx profiling to be more like alchemy
than science. Recent versions have added some automated simplicity, but I
still don't trust it first time around. Let us know how you make out.
John Castronovo
-----Original Message-----
From: zbet66--- via colorsync-users
Sent: Monday, June 24, 2019 10:58 PM
To: email@hidden
Subject: Printer Profiling Issues
Thanks for the reply Don.
I'm using an Isis spectro with Onyx Thrive. My goal is to get the maximum
printer gamut on canvas.Ink restrictions were set by reading the Onyx target
into the Onyx Thrive.
Pre-linearization is done on the printer, the Epson 80600. Ink limits were
set by visually inspecting the Onyx target.Delta E is determined by
measuring a custom 24 patch target I made and comparing it to the reference
values in Colorthink.
I agree that I would not want to use an editor. I displayed the ICC profile
in Color think and put the 24 patch target up. All the patch points fit into
the gamut except the violet patch. The Magenta has the highest Delta E which
is 7.35.
I'm going to try and increase the ink limits and see if the Delta E's go
down.
Randy Zaucha
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