Global Change: Convert to Color Space

Started by Lammy, February 01, 2017, 09:35:24 AM

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Lammy

When using this global change option for Device CMYK, which profile is it actually using if any. How would I go about changing the profile it uses?
Lammy ~ Everyone says a monkey can do it, but no one ever asks the monkey!

72+ cases - wood & metal type & sorts • LInotype Model 31 • Hohner B tabletop • Golding #7 Jobber • ATF Little Giant • Heidelberg S Cylinder

Joe

Pretty sure it uses the color management that is set in your Pitstop preferences. You can change your Pitstop global preferences for color management which isn't ideal or you. can save the global change as an action and add in the 'Override Color Management' action and change it to whatever you want and it will only affect this particular action.

Funny you ask this today as they just covered that this morning in the Pitstop monthly webinar.
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

Lammy

Do you have a link to a recording of that webinar?

Think I got it. Didn't realize at first the "applied" windows was not just showing the setting of the selected profile.
Lammy ~ Everyone says a monkey can do it, but no one ever asks the monkey!

72+ cases - wood & metal type & sorts • LInotype Model 31 • Hohner B tabletop • Golding #7 Jobber • ATF Little Giant • Heidelberg S Cylinder

Joe

They usually don't have the link to the recording for a few days. Andrew usually posts the links when the recording is available.
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

mattbeals

Global Change uses the PitStop color management preferences.
Matt Beals

Everything I say is my own personal opinion and has nothing to do with my employer or their views.

Slappy

So would the Default Settings be considered horrible? Cause that's what's being used here, much as I think it's wrong.
A little diddie 'bout black 'n cyan...two reflective colors doin' the best they can.

Joe

I usually keep it off so that way if you run the convert to gray action it will keep text at 100% black. Any of the others will give you a screen somewhere between 85% - 90%. The only issue with that is photos get pretty heavy in the shadows so I usually convert photos using either the prepress default one or the Acrobat one. Those sometimes look a bit washed out though so I usually do a curve or contrast move using Pitstop to change them after converting to gray. I have not found one that works well for everything though. I keep the Pitstop color management tool in the Acrobat toolbar so I can change it quickly.

Just to note that if you are using Acrobat DC on a Mac you can't use those profiles out of the box because they use the Adobe CMM engine which is only 32 bit. You will need to edit them to create new ones and change the CMM engine to 'Little CMS' which is 64-bit for Acrobat DC on the Mac.
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

frailer

I got caught badly a few months back..did a series of curve adjustments in PitStop, did a Save, but hadn't hit the 'Apply' button in that window. In my (older) version, there's no fuckwit alarm prompt to ask you if you want to 'Apply'. This may have changed. If it hasn't, I think I'll pursue it with ABC once we upgrade.

We're currently living in the Jacobean Period, so to speak, in terms of upgrades. Sorta 16th Century.
Forgotten good guys: Dennis Ritchie, Burrell Smith, Bill Atkinson, Richard Stallman
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Joe

Quote from: frailer on February 11, 2017, 06:07:28 AMI got caught badly a few months back..did a series of curve adjustments in PitStop, did a Save, but hadn't hit the 'Apply' button in that window. In my (older) version, there's no fuckwit alarm prompt to ask you if you want to 'Apply'. This may have changed. If it hasn't, I think I'll pursue it with ABC once we upgrade.

We're currently living in the Jacobean Period, so to speak, in terms of upgrades. Sorta 16th Century.

It does prompt you if you try to leave that window without hitting Apply.
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

frailer

Thanks. That's a good hole to have plugged. Arse is still sore from it...

(just realised that's a pretty weird sentence mix there... :-\  )
Forgotten good guys: Dennis Ritchie, Burrell Smith, Bill Atkinson, Richard Stallman
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Now just an honorary member.

mattbeals

Quote from: Slappy on February 08, 2017, 01:24:58 PMSo would the Default Settings be considered horrible? Cause that's what's being used here, much as I think it's wrong.

Default settings are almost as bad as color management being turned off. In PitStop set the color profiles that you use in Photoshop/InDesign/Illustrator/Acrobat. Whatever you do; don't turn them off.
Matt Beals

Everything I say is my own personal opinion and has nothing to do with my employer or their views.

Slappy

That was my suggestion, which fell on deaf ears because of my favorite phrase:

"That's how we've always done it."  :shoots_self:
A little diddie 'bout black 'n cyan...two reflective colors doin' the best they can.

Joe

Quote from: mattbeals on February 13, 2017, 07:13:11 PM
Quote from: Slappy on February 08, 2017, 01:24:58 PMSo would the Default Settings be considered horrible? Cause that's what's being used here, much as I think it's wrong.

Default settings are almost as bad as color management being turned off. In PitStop set the color profiles that you use in Photoshop/InDesign/Illustrator/Acrobat. Whatever you do; don't turn them off.

I might agree with that if all we used Pitstop for was converting RGB images to CMYK, But we rarely convert images from one color space to another in Acrobat and we prefer using whichever profile gives the best results when we do convert anything. And if you do convert anything with 100% black text to gray you really are going to get gray instead of black with anything other than having color management turned off. Using default settings or any color management profiles for everything is not a good thing. The operator should always use whatever achieves the best result for any given subject matter.
Mac OS Sonoma 14.2.1 (c) | (retired)

The seven ages of man: spills, drills, thrills, bills, ills, pills and wills.

mattbeals

Quote from: Joe on February 13, 2017, 10:11:39 PM
Quote from: mattbeals on February 13, 2017, 07:13:11 PM
Quote from: Slappy on February 08, 2017, 01:24:58 PMSo would the Default Settings be considered horrible? Cause that's what's being used here, much as I think it's wrong.

Default settings are almost as bad as color management being turned off. In PitStop set the color profiles that you use in Photoshop/InDesign/Illustrator/Acrobat. Whatever you do; don't turn them off.

I might agree with that if all we used Pitstop for was converting RGB images to CMYK, But we rarely convert images from one color space to another in Acrobat and we prefer using whichever profile gives the best results when we do convert anything. And if you do convert anything with 100% black text to gray you really are going to get gray instead of black with anything other than having color management turned off. Using default settings or any color management profiles for everything is not a good thing. The operator should always use whatever achieves the best result for any given subject matter.

 Best result no matter what the intended output intent is? You should use the right profile, which may or may not be a canned profile. Another benefit of using a good profile from you data is consistent separations. Meaning the separations are done in a consistent way with a consistent dot gain/curves, G/UCR, white point, TAC, etc. Consistency is the key.

Black type converting to gray is a strange one. There is little reason to convert K of CMYK or separation black to device gray unless your black & white printer has a problem interpreting K of CMYK or separation black as a black click. And even then, the problem is in PitStop and its color conversions. Here it would be better to use the remap color function to remap the channel to device gray rather than to convert.

In this case callas still does it better even though they use the same LittleCMS engine. It's not the engine, it's the logic running it.
Matt Beals

Everything I say is my own personal opinion and has nothing to do with my employer or their views.

Farabomb

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