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If the image gets more pale when switching the color management "ON", while the image is read as "sRGB", that means you're on a wide-gamut screen.
OR that PM is whacked up
OR that your monitor profile is whacked up.
Actually the opposite happens. In Photo Mechanic, the image gets more pale when I turn colour management to 'OFF'. I'd prefer this as I'd rather a picture looked too pale, rather than too saturated, when viewed on a monitor that wasn't picking up the profile settings.
Also should have mentioned earlier, I'm using a Win 7 laptop computer which is normally hook up to a Dell 2412M monitor when working at home.
When you look at your Photoshop settings, like here:
(scroll down to the headline "Monitor RGB = Default Monitor Profile = ICC Profile associated with your monitor") quite a bit down the page
-what does photoshop say you're using for your monitor?
Ha, I'm just after checking this and the working space was set to Monitor RGB - sRGB IEC61966-2.1. I changed this to sRGB IEC61966-2.1 as the article recommends.
The Canon sRGB is virtually identical to standard sRGB, which you can see if you open a file tagged with "Canon sRGB" in photoshop, and then go menu "Edit/Assign Profile" >> sRGB IEC61966-2.1. The image should look exactly the same before/after assigning the standard sRGB icc profile.
I also checked this and you are correct. In Photo Mechanic, a test image looks almost identical with either the normal sRGB or the Canon version profile.
Also check that you don't have any kind of "soft-prrofing" active in photoshop - nothing should be 'checked" under the menu "View/Proof Colors"
I also checked this and found that, under View, Proof Setup, I had 'Working CYMC' checked. I think one option must be checked - would 'Internet Standard RGB (sRGB)' be a better choice?
An sRGB image that you can trust to show what it should on your own system is the best way to make sure general Web usage is smooth and problem free. But the embedded Canon sRGB isn't a very good idea, some systems that don't take well to custom embedded profiles would prefer just a tag with the standard IEC sRGB profile.
Okay, I guess the easiest way to change from the Canon sRGB to the normal sRGB would be in Photoshop, or can I do this in DPP?
You have provided some very useful information and I'd like to say thanks for taking the time to do so... Much appreciated