Hi Martin I did a few tests in i1P and confirm your findings. The "Intelligent Black" feature does odd thing when it thinks TAC should be low and the Max K separation/width is contributing to the low yellow. I've had issues with the settings for digital as have others online. I remade the profile with the same data and it was fine, so it's an i1P thing. I've never got an answer or seen one from X-Rite on the issue. Malcolm +44 (0)20 3239 3330 +44 (0)7910 413421 mm@colour-engine.com skype; print_and_proof LinkedIn <http://uk.linkedin.com/pub/malcolm-mackenzie/7/326/778/> Twitter <https://twitter.com/ColourEngineLtd> www.colour-engine.com TeamViewer Quick Support <https://get.teamviewer.com/xjv8qcf> On 6 March 2017 at 20:00, <colorsync-users-request@lists.apple.com> wrote:
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Today's Topics:
1. Re: FOGRA52 & i1Profiler (Martin Orpen)
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Message: 1 Date: Mon, 06 Mar 2017 13:44:12 +0000 From: Martin Orpen <martin@idea-digital.com> To: "'colorsync-users?lists.apple.com' List" <colorsync-users@lists.apple.com> Subject: Re: FOGRA52 & i1Profiler Message-ID: <3C5CA2A6-7570-4A90-925E-6C78A7403549@idea-digital.com> Content-Type: text/plain; charset="utf-8"
On 1 Mar 2017, at 00:21, Martin Orpen <martin@idea-digital.com> wrote:
I’ve made some MaxK and Full Black profiles using both the supplied FOGRA52.mxf and by importing the raw ECI data and they produce a Y channel that has next to nothing in it if you use the profiles in Photoshop.
I guess that FOGRA52 isn’t that popular then?
The PSO Uncoated v3 (FOGRA52) profile documentation says:
The profile was created using the Heidelberg Color Tool 17 with the following settings: black length 9 (starting point 10%) black width 10 total dot area 300% maximum black 96%
I can’t get yellow values anywhere near those generated by this profile using i1Profiler or ArgyllCMS.
And nothing even remotely close to the neutral curves of the Heidelberg perceptual rendering.
So I gave up and separated to a custom built FOGRA47L instead and then proofed the job to FOGRA52.
I find it odd that the dark patch on the ECI/BVDM Gray Control Strip for FOGRA52 is C62 M55 Y60 — an ink combination that the ICC profile is incapable of producing...
-- Martin Orpen Idea Digital Imaging Ltd