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  • Which color profile to use?

    I did a retouch example (test) and it was saved at TIF file, Profoto RGB profile, 16bits.

    However when I selected Assign Profile in PS to my calibrated spyder pro 3 or sRGB, the color look awnful.

    Usually I was always using sRGB (for two copies one for Web and other for print). However this time when I switched to My Spyder Pro 3 calibarated profile in PS, I noticed the color suddenty changed (skin tone turned really pale) in my Print preview screen. Now with that Profoto RGB profile is there a method in PS if I want to print this file??

    I would like to have two copies one publish on Web and other for print.
    As far as I know, sRGB loose a lot of color
    Last edited by qpixo; 10-04-2010, 08:04 AM.

  • #2
    Re: Which color profile to use?

    Qpixo, if you are trying to convert from one color profile to another you should NOT be using the Assign coomand. For conversion, you should use Edit>Convert to Profile.
    The Assign command is used to inform PS what color profile an image is currnetly in, so that PS can display it properly. The command is used primarily when you ask PS to open an image that has not been tagged with a color profile so photoshop will automatically assume the image's profile is the same as PS current color workspace.
    If you have an image edited an image in Prophoto and you now use the assign command to tell PS that the image is in Adobe RGB or sRGB or almost any other color space, PS will display the image in that space and it will look pretty ugly.
    Regards, Murray

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    • #3
      Re: Which color profile to use?

      Assign profile doesn’t alter the RGB values, it only updates their definition (their scale). The number are in ProPhoto RGB as they should be. Updating the definition using Assign makes those number look awful because they are incorrectly being displayed because you lied to Photoshop. Assign profile is useful for untagged data, images without a profile. Photoshop has to guess what the scale is (it guesses based on the RGB working space you set in color Prefs). You have to Assign a profile so the numbers ARE properly defined and look correct. That’s the only time you’d use Assign profile.

      IF you have Adobe RGB and want sRGB numbers, you use Convert to Profile and save out a new iteration. That changes the numbers and that’s why they now look correct.

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      • #4
        Re: Which color profile to use?

        Understood different now. I can see color look correct when I selected convert to Profile then choose sRGB profile for Web.

        But my concern is Print purpose. Should I choose CMYK in advanced option if offer CMYK (Working CMYK - US Web Coated SWOP v2)??

        I'm using ProPhoto RGB as default not Abode RGB.


        Here's current setting that I have:
        http://i232.photobucket.com/albums/e...rt_profile.jpg


        Thanks a lot,

        Originally posted by andrewrodney View Post
        Assign profile doesn’t alter the RGB values, it only updates their definition (their scale). The number are in ProPhoto RGB as they should be. Updating the definition using Assign makes those number look awful because they are incorrectly being displayed because you lied to Photoshop. Assign profile is useful for untagged data, images without a profile. Photoshop has to guess what the scale is (it guesses based on the RGB working space you set in color Prefs). You have to Assign a profile so the numbers ARE properly defined and look correct. That’s the only time you’d use Assign profile.

        IF you have Adobe RGB and want sRGB numbers, you use Convert to Profile and save out a new iteration. That changes the numbers and that’s why they now look correct.
        Last edited by qpixo; 10-04-2010, 10:31 AM.

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        • #5
          Re: Which color profile to use?

          Originally posted by qpixo View Post
          But my concern is Print purpose. Should I choose CMYK in advanced option if offer CMYK (Working CMYK - US Web Coated SWOP v2)??
          ONLY if the output device confirms to SWOP v2. What’s the output device?

          Comment


          • #6
            Re: Which color profile to use?

            I have a Epson stylus r1900 as printer and Spyder Pro 3 to calibrate.

            Originally posted by andrewrodney View Post
            ONLY if the output device confirms to SWOP v2. What’s the output device?

            Comment


            • #7
              Re: Which color profile to use?

              Originally posted by qpixo View Post
              I have a Epson stylus r1900 as printer and Spyder Pro 3 to calibrate.
              You would use the paper profile the driver installs based on the paper you are printing to.

              Comment


              • #8
                Re: Which color profile to use?

                U mean the paper size choice of my Epson? in Print option of PS?
                Color Handling: Printer Manages Colors

                I don't need to convert profile to CMKY?

                Originally posted by andrewrodney View Post
                You would use the paper profile the driver installs based on the paper you are printing to.

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                • #9
                  Re: Which color profile to use?

                  Originally posted by qpixo View Post
                  U mean the paper size choice of my Epson? in Print option of PS?
                  Color Handling: Printer Manages Colors

                  I don't need to convert profile to CMKY?
                  No, the Epson is an RGB output device. You send it RGB.

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                  • #10
                    Re: Which color profile to use?

                    Therefore for print, I would keep it ProPhoto RGB or convert it to sRGB?

                    Originally posted by andrewrodney View Post
                    No, the Epson is an RGB output device. You send it RGB.

                    Comment


                    • #11
                      Re: Which color profile to use?

                      Originally posted by qpixo View Post
                      Therefore for print, I would keep it ProPhoto RGB or convert it to sRGB?
                      You send whatever RGB working space you have to the print driver, Photoshop and the driver do the conversions. You need to read up on how to color manage the data from working space to print space. http://www.ppmag.com/reviews/200506_rodneycm.pdf

                      Comment


                      • #12
                        Re: Which color profile to use?

                        qpixo

                        You want to make large prints for exhibitions?
                        You can't see Profoto RGB on your monitor
                        I think Adobe RGB is enough

                        I use RGB: eciRGB v2 & CMYK: Euroscale Coated v2
                        but I live in Europe

                        Comment


                        • #13
                          Re: Which color profile to use?

                          I want to print out 11x14 or 13x19 format out of my Epson R1900 printer.
                          and I already choose Profoto RGB as profile.



                          Originally posted by SZStudio View Post
                          qpixo

                          You want to make large prints for exhibitions?
                          You can't see Profoto RGB on your monitor
                          I think Adobe RGB is enough

                          I use RGB: eciRGB v2 & CMYK: Euroscale Coated v2
                          but I live in Europe

                          Comment


                          • #14
                            Re: Which color profile to use?

                            Originally posted by qpixo View Post
                            I want to print out 11x14 or 13x19 format out of my Epson R1900 printer.
                            and I already choose Profoto RGB as profile.
                            ProPhoto is fine, now you need to select the paper profile for whatever you are popping into that R1900. If you are using Epson papers, they should be installed on your system from the install of the driver.

                            Comment


                            • #15
                              Re: Which color profile to use?

                              Yes I always and only use Epson glossy paper 11x14 or 13x19 to print.

                              What I don't understand is how to calibrate? I own a Spyder Pro 3 calibration.
                              Do I have to convert to choose the profile as My Spyder Pro 3? or I can keep ProPhoto RGB as default?

                              Originally posted by andrewrodney View Post
                              ProPhoto is fine, now you need to select the paper profile for whatever you are popping into that R1900. If you are using Epson papers, they should be installed on your system from the install of the driver.

                              Comment

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