Soft proofing ink simulation and gamut query

DxO PhotoLab
1

Hi

I’ve resurrected an old Canon Pro 1 to do some printing which I’m quite enjoying. But I have a couple of queries around soft proofing.

First one is there is an option to Simulate Ink and Paper. Given that soft proofing is to help visualise the print, why would you NOT have this selected? Surely the correct thing is to keep this option selected?

Second one is - I have a photo whose colours are quite subdued and desaturated. I select the icc profile for my paper and switch on the gamut warning. As I expected with this photo, nothing is showing as out of gamut. So why does the image change when I toggle between Perceptual and Relative? If all colours are within gamut then why are the colours shifting - there’s no need for them to change.

I did do a search on the forum but couldn’t find anything which addressed these specific queries.

I’m sure I’m missing something obvious…just not obvious to me :slight_smile:

Thanks.

2

There are those here who would answer yes but it’s not something I do. In fact I never use PL’s soft proofing feature.

There are others here who will also say they don’t print from within PL. Instead they use Canon’s professional Print & Layout software, which gives far more control of the printing process than PL.

3

I don’t print. And without the selection of a certain paper I don’t think it’s quite helpful.
And for my screen I don’t need soft proof. Color management is doing that.
And for point 2, the out of gamute colors are those colors that are untrustworthy after conversion. Relative and perceptual deal different with these colors. Watch your histogram too.

George

4

@up_north

I’m one of “those” who always use softproof, while mostly I print via old PS (for other reasons).

Maybe you like to have a look → here … and → here …
To get some more ideas → here …

(ed)

5

If you value the concept of WYSIWYG (as in, having your output always looking exactly as you see it in PL’s main window) then absolutely, Yes !

I don’t print - but I have SP permanently activated (via my default preset, which is applied to all newly encountered imaged) and set for sRGB output. This way I am not otherwise surprised when, occasionally, certain colours (typically, saturated reds) would be rendered differently when exported.

6

But only when your out of gamut warnings are turned on.
It’s fun, but it’s not the red channel that causes the OOG problem but the green and less the blue channel. They’re to low.

George

7

I don’t understand what you mean by that assertion, George … It’s not necessary to have OoG warnings on in order to achieve WYSIWYG - - You only need SP activated.

8

Only when your SP gamut is covered by your monitors gamut. It’s impossible to show colors that are outside the monitors gamut.

George

9

Yes, of course … and, as I stated;

10

That isn’t always clear.
But even then there might be a difference between the monitors color space and sRGB. In my case anyway.
Everybody has to find his own way and I do understand your philosophy.

George

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