Out of gamut -- Affinity vs Photoshop

[Soulartist]

macOS Big Sur 11.6

 

When I check for out of gamut on the same image with the same settings, Affinity shows more colors out of gamut than Photoshop. 

Why this difference?

I realize you can adjust the out of gamut colors to fall within the color space of the media and printer. I'm printing fine art paintings, not photos. 

This out of gamut difference would then change how the print comes out in Affinity and PS.

Thanks for reading. 😀

Edited January 1, 2022 by Soulartist
Include Mac

[RichardMH]

What colour spaces are you using in Affinity and Photoshop?

 

[Soulartist]

Adobe RGB (1998)

[Hillman205]

I have a similar issue. I do a softproof with the icc profile of a print paper and Affinity Photo Shows mich more Colors out of gamut than the softproof Photoshop. When printing there seem to be only minor issues with out of gamut colors so the Photoshop softproof seems to be much Closer to the final result. From my understanding the out of gamut check should give the same result in Affinity as in Photoshop. Is there a known issue with the out of gamut check in Affinity Photo?

Best regards

juergen

Edited April 28, 2022 by Hillman205
writing error

[Soulartist]

I have not been able to find a reliable response to out of gamut issue. Although, I think that out of gamut would cause more issues when printing in CMYK. 

[lacerto]

Obsolete.

[Soulartist]

Hello:

Thanks for your comments. 

I only print from Adobe RGB. Using the same relative colorimetric intent with black point compensation on both PS and AP shows different results in the out of gamut check. I noticed this years ago, and still today. I have not found an answer as to why, not even from AP developers. 

[lacerto]

Obsolete.

[Soulartist]

When all the settings are the same, one would expect any out of gamut check to be the same, as well.

Why would AP change Relative Colorimetric to Absolute Colorimetric -- one would think some tech person from AP would address this issue. In other words, printing from AP is an unreliable nuisance. 

Here is one example:

Image (left) AP out of gamut

Image (right) PS out of gamut

The text appears out of gamut in AP, but not in PS.

Selecting Absolute Colorimetric in AP had no effect on removing the out of gamut text. 

When printing in AP, I didn't notice much of a difference in the text. But, with other of my fine art prints, differences are noticeable when printing the same image in PS (closer to what I expect)and AP where colors can be off and muted. 

[Lee D]

@Soulartist Can you provide side by side comparisons of the same image open in AP and PS and the setup/settings applied in both apps including the Print window so I can also do the same tests on our systems.

[Soulartist]

Hi Lee:

Please see attached: settings are the same for both PS and AP. In this image (see the text in the image), PS shows either no or very little out of gamut, while AP shows much more out of gamut--and this does affect the printed image.

[lacerto]

Obsolete.

[cgidesign]

More discussion about softproof here:

 

[Soulartist]

Lacerto:

Thanks for taking the time to post this: your results are pretty much the same as mine. 

[Soulartist]

cgidesign

Thanks for posting this link. This issue has been going on for at least several years. 

[Soulartist]

As this out of gamut inconsistency issue has been going on for years, I would have expected the publisher to resolve this by now--I for one would then feel ok for setting up my art print from Affinity Photo, and say goodbye to Photoshop.