April 2017 - colorsync-users

Re: Colorsync-users Digest, Vol 14, Issue 14
by Malcolm Mackenzie 10 Sep '17

10 Sep '17

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(a)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(a)lists.apple.com> wrote: > Send Colorsync-users mailing list submissions to > colorsync-users(a)lists.apple.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.apple.com/mailman/listinfo/colorsync-users > or, via email, send a message with subject or body 'help' to > colorsync-users-request(a)lists.apple.com > > You can reach the person managing the list at > colorsync-users-owner(a)lists.apple.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Colorsync-users digest..." > > > Today's Topics: > > 1. Re: FOGRA52 & i1Profiler (Martin Orpen) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 06 Mar 2017 13:44:12 +0000 > From: Martin Orpen <martin(a)idea-digital.com> > To: "'colorsync-users?lists.apple.com' List" > <colorsync-users(a)lists.apple.com> > Subject: Re: FOGRA52 & i1Profiler > Message-ID: <3C5CA2A6-7570-4A90-925E-6C78A7403549(a)idea-digital.com> > Content-Type: text/plain; charset="utf-8" > > > > On 1 Mar 2017, at 00:21, Martin Orpen <martin(a)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 >

6 12

Random spot readings with i1Profiler photo version
by James Lawson 26 Apr '17

26 Apr '17

One feature that Datacolor Print has is the ability to use the Spectrophotometer to take a spot measurement and get a lab reading instantly in a small window. So when I'm comparing prints I can quickly ascertain the difference in patches. It doesn't require me to have a target. Unfortunately you can't do the same in i1Profiler and I just looked at Color Port again and it requires a target also. If want to be able to do this with i1 profiler I have to upgrade to the Publish edition. The X-rite technician said there are third party apps but he couldn't name names. If anyone knows of an app that would make this easy I would appreciate the info. Jim Lawson email jiml1948(a)mac.com <mailto:jiml1948@mac.com> website http://www.jimlawsonphotography.com

5 7

Re: Random spot measurements
by Barry Rudick 25 Apr '17

25 Apr '17

I can confirm that spot measurements are quick and easy with SpectraColor. Barry Rudick Aker Imaging

1 0

DTP-41 question
by Roger Breton 18 Apr '17

18 Apr '17

I was given two almost brand-new DTP-41UV units. It breaks my heart to throw them in the garbage. But I got only "one" Color Reflection Reference for both. Given that these things are next to impossible to find, new, I was wondering . I sort of vaguely remember that the old ToolCrib allowed a Terminal mode with the instrument. I remember long, long ago, when buying a fresh Color Reflection Reference from X-Rite, that the data from the new Reference had to be "downloaded" into the instrument? Pretty sure. Now, I tried the instrument with the old MeasureTool (5.1) and, after pressing the Start button, to measure, say, the two strips RGB TC2.83 target, the software appears to enter right into "measurement mode", as though no calibration of any kind was necessary? Question: is it possible to use one of those DTP41 "without" a Color Reflection Reference? Will the instrument "remember" to use the last downloaded reference into its memory? I have to dig into the old ToolCrib PDF I found in my moth balls but if any knows. / Roger

3 3

Re: Bruce Lindbloom's website
by Rich Wagner 07 Apr '17

07 Apr '17

Thanks, Andrew. I hope Bruce is well, too! And perhaps some corporate sponsor could make sure that his site stays up in perpetuity. It’s a phenomenal resource. ;-) —Rich > On Apr 7, 2017, at 12:00 PM, Andrew Rodney wrote: > > The site is back up thankfully! > > Hope Bruce is well. > > Andrew Rodney > http://www.digitaldog.net/ > >> On Apr 3, 2017, at 11:17 AM, Louis Servedio-Morales <louis(a)blueseaeditions.com> wrote: >> >> Have tried the Wayback Machine? >> >> https://web.archive.org/web/20160301000000*/http://www.brucelindbloom.com/ >> >> >>> On Apr 3, 2017, at 1:05 PM, Rich Wagner <Rich(a)WildNaturePhotos.com> wrote: >>> >>> I went to http://www.brucelindbloom.com yesterday to check some equations and found that his site was down and was replaced with this cryptic message. >>> >>> All things must pass, >>> All things must pass away. >>> —George Harrison >>> >>> Has anyone heard anything about this? I’ve always expected that Bruce’s site would live on in perpetuity… as it is an incomparable resource. >>> >>> For many reasons, I’m hoping this is a glitch. >>> >>> —Rich Wagner

1 1

Bruce Lindbloom's website
by Rich Wagner 07 Apr '17

07 Apr '17

I went to http://www.brucelindbloom.com yesterday to check some equations and found that his site was down and was replaced with this cryptic message. All things must pass, All things must pass away. —George Harrison Has anyone heard anything about this? I’ve always expected that Bruce’s site would live on in perpetuity… as it is an incomparable resource. For many reasons, I’m hoping this is a glitch. —Rich Wagner

3 2

BCRA Tiles
by Roger Breton 05 Apr '17

05 Apr '17

Did a simple BCRA tiles video. May be of interest to somebody (Got a better microphone this time.). https://www.youtube.com/watch?v=C0-K3yDk_bY <https://www.youtube.com/watch?v=C0-K3yDk_bY&t=1s> &t=1s Regards / Roger Breton

1 0