ILLUSTRATOR: convert to gray

[Dario]

Hi all,
I'm trying to convert some vector objects from CMYK-gray to K-gray inside ILLUSTRATOR and to get a result similar to what PHOTOSHOP gives, because if I do it using PHOTOSHOP the outcome looks "better".
Converting a CMYK object to gray in ILLUSTRATOR gives me a result too different from the original.
I hope I'm making myself clear...
(see attached sample)
How to do it?

 

[Ulrich]

hi

how do you have defined your grayscale colorsetting workingspace in Photoshop? gamma 1.8 or gamma 2.2 or 15% TVI or 20% TVI or...?

I don´t have an actual Version of Illustrator, but i guess there is no possibility to define a grayscale workingspace. But may be you got more equal results, if you change your Illustrator CMYK-workingspace-profil bevor you convert from one mode to the other?

may be your problem is located there...?


Ulrich

 

[Dario]

hi

how do you have defined your grayscale colorsetting workingspace in Photoshop? gamma 1.8 or gamma 2.2 or 15% TVI or 20% TVI or...?

I don´t have an actual Version of Illustrator, but i guess there is no possibility to define a grayscale workingspace. But may be you got more equal results, if you change your Illustrator CMYK-workingspace-profil bevor you convert from one mode to the other?

may be your problem is located there...?


Ulrich

I was thinking the same and my outcome was same as yours: the is no gray color setting in Adobe Illustrator!
I'm using 'dot gain 15%' in Photoshop and I'm not able to reproduce it in Illustrator

 

[michaelejahn]

When you say "Converting a CMYK object to gray in ILLUSTRATOR" - where are are you doing that ?

Select the object or groups on the artboard you want to convert, then under the "Edit" menu choose "Edit Colors" then "Convert to Grayscale" ?

have you tried

Use the Edit > Edit Colors> Adjust Colors command to convert objects to grayscale and adjust the shades of gray at the same time - or, just use Adjust colors and pick the color you want...



Have you tried saving as a PDF and converting this within Acrobat ? Or PitStop ? Illustrator does not have a working grayscale space.

 

[Chasfinch]

gray conversion in acrobat and illustrator does not always work the same as photoshop. We just spend a day trying to correct a gray/4color issue and found 100% of 4 CP black object does not convert to 100 grey.

 

[michaelejahn]

I think you can finagle PitStop into doing greyscale conversions "more" like Photoship does - but I agree it is fussy.

 

[Dario]

I agree it is fussy TOO

 

[Stephen Marsh]

I was thinking the same and my outcome was same as yours: the is no gray color setting in Adobe Illustrator!
I'm using 'dot gain 15%' in Photoshop and I'm not able to reproduce it in Illustrator

In Photoshop you could make a legacy custom CMYK 15% Max GCR CMYK working space colour setting, then save it to a profile for use in Illustrator… This should get you +/- 1% to the 15% dot gain value on various tones.



Stephen Marsh

 

[Ulrich]

In Photoshop you could make a legacy custom CMYK 15% Max GCR CMYK working space colour setting, then save it to a profile for use in Illustrator… This should get you +/- 1% to the 15% dot gain value on various tones.



Stephen Marsh

applause! (That works fine...)



Ulrich

 

[Dario]

Great Stephen!
...how to do it?

 

[Stephen Marsh]

Great Stephen!
...how to do it?

Screenshots attached

 

[Dario]

Thanks!!