QUOTE (Paul2660 @ May 21 2008, 09:29 AM)
Actually, I feel it's a huge concern, if you use custom color profiles. Anytime you take a image from a custom profile (J H Holmes for example) or just from Prophoto or Adobe sRGB 1998 down to sRGB you lose a ton of color, range etc. You basically have to rework the entire image and even then you won't get it to be the same.
Well yes, you "lose" a ton of color due to the huge disconnect between the gamut of the color spaces. But you do that with any color space conversion (going out to print).
As for the rework, never seen it. Not going working space to working space. For one, the gamut of most users is at or about sRGB. So the loss isn't visible nor for that matter were the colors that exceeded display gamut. I don't see anything alarming going Adobe RGB to sRGB on an Adobe RGB display either. There's a visual difference in some saturated colors, but nothing that would warrant the need to work anything, how could you, the colors that were out of gamut are out of gamut?
You don't get the same results because you need to tailer the RGB numbers, the color space for the device. Its true if you go sRGB or ProPhoto RGB out to a printer. Or if you go wider gamut working space to smaller gamut for the web. But a huge problem? I don't see it.