North America GP2 V Europe GP3

Question

Hi GuysI am a newbie to the Forums,Please can somebody tell me the difference between the above title, and what impact does it have if any at all on my images or editing, many thanks in advance.PS: I am based in Ireland, I imagine I should be using Europe GP3Damien

davescm · Accepted Answer

HiThe difference between the two is in the default colour spaces used when making new documents.RGB documents - The American setting uses sRGB and the European setting uses AdobeRGB. Both will work fine for general use. Adobe RGB is capable of encompassing more colours and is a good general choice but if you post an image on the web you should always convert it to sRGB before posting.CMYK documents - Both American and European settings are irrelevant. If you ever need to work in CMYK then you should talk to your printer and find out what CMYK profile to use according to the way the press is set up. If you don't know the actual profile to be used then don't work in CMYK.The Gray and Spot settings should again be set by talking to your printer. If you are not going to use a press then setting Grey to grey gamma 2.2 will work for screen work (in reality you will see little difference on screen).Dave

D Fosse · Answer

You don't have to use any of them. These are just presets for your color settings. There's never any particular need to stick to presets if you'd rather define your own settings.

If you start out with the default (which is North America general purpose), there are some items you may or may not want to change:

RGB working space. Stick to sRGB IEC61966-2.1 if you're new to this. It's not really all that important, as any embedded color profiles already in the file will always override it. It's just a default if there is no profile. As you get more experience and knowledge about color management, you may want to change it - but by then, you'll also know why.

CMYK working space. CMYK is only ever used for commercial offset print. Here it gets a bit tricky, because it depends on where you are and what printer you regularly use. Offset presses are calibrated to different standards around the world, and you need to use a profile that corresponds to that standard. In Europe, that is most often ISO Coated v2 300% (ECI), or sometimes Coated FOGRA39. Ask the printer.

Gray working space. Here I would strongly recommend Gray Gamma 2.2 for a number of reasons. That corresponds roughly to the tone response curve of your monitor. A lot of things in Photoshop are displayed in your gray working space, and this ensures reasonable consistency.

And now for the really important part: Color Management Policies. Leave this at the default, which is Preserve Embedded Profiles. Don't ever change that, under any circumstances! Any other setting basically breaks Photoshop's color management, and quickly leads you into a lot of trouble.

The warnings are optional. Two of them are useless, but the third, Missing Profile, can be useful. I'd recommend that you keep track of color profiles in a much more efficient way. Set the notification area bottom left like this:

Don't touch the rest, just leave them as they are.

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