DAVlDHAM
February 13 2007, 03:39 PM
Serena, Kevin is right in that the AdobeRGB space has a wider gamut of color to choose from, so specifically, certain colors in the reds and greens will exist in the AdobeRGB colorspace but not in the sRGB colorspace. However, I think I might not be clear when I say that the pictures will look dull. I can't completely speak for the Mac, as I don't know if their browsers are icc aware like the rest of their applications, but in the windows world, if you upload a jpg in AdobeRGB that contains a lot of out of gamut colors for the sRGB colorspace, your pictures will look "dull." Most internet browser expect the pictures to be in sRGB. I think this help article makes it easier to digest this idea:
http://blogs.smugmug.com/great-prints/2005...ters-my-colors/ You can easily see for yourself too if you output two pictures, one in sRGB and one in AdobeRGB. View it via a web browser, and you'll see the problem I am talking about.
However, like Kevin said, when it comes to print, I like to maintain my workflow in ProPhoto or AdobeRGB and export to sRGB for web, and AdobeRGB for printlabs that support. For my inkjet printer, if you compare the AdobeRGB colorspace, you will find that these 8color inkjects are capable of producing some color that is even outside the AdobeRGB space. It sounds confusing, but it really isn't once you understand the concept of color spaces. For everyday prints to Costco, I convert to the icc profile for that particular Costco's printer to ensure the best possible print. You can get Costco printer profile from
http://www.drycreekphoto.com. Costco's printer does not read embedded icc profile, so you need to convert explictly to their printer's profile.
-David