If youare only outputting to CMYK presses but you are working within the Lab colorspace, you may be constantly disappointed because many of the colors you wouldsee on the screen could not actually be reproduced on a printing press. It turns out that the color gamut of a CMYK printing press ismuch smaller than the color gamut of the human eye, the Lab color space. If you are outputting your work on color film, digital printers, computermonitors, or printing presses, you also need to consider the color gamut ofthose devices.

For any particular body ofwork that involves human viewing, you will probably not need to work with colorsoutside the gamut of Lab because this is the set of colors the human eye cansee. Let's first discuss the color gamut issue. So when working in Photoshop 6 or 7,you need to decide which color model, RGB, CMYK, or Lab, makes the most sensefor your type of work, and then within that model, what color gamut you need forthe work you are doing. Each color spacealso encompasses a particular color gamut. Color spaces available withPhotoshop 6 and 7 use either the RGB, Lab, or CMYK color model.

When you are working in Photoshop 6 or 7, you have the option of choosingdifferent color spaces as your working color space. Learn More Buy Choosing Your Color Working Space

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