William Robb wrote : > Photographic paper's colour gamut falls within sRGB. If you send a wider > gamut file to a photographic printer, the paper will clip. > I agree with this.
Besides, using a wider color space (adobe RBG or ProPhoto or any other) means that a given color range will be represented by a narrower numeric range: if 0-255 represents a wider range, this means that each interval, for instance 127-128, represents a wider range, too. So a physical color range that spans over 10 units in sRGB may only span 8 units in aRGB. Although a adobe RGB file will properly render a few colors that would be fully saturated in the equivalent sRGB, for the areas of the image that fall in both spaces, sRBG will have more distinct numeric values available to distinguish between colors. With 8 bit quantication, this means that adobe RGB may show more banding artifacts than sRGB for most colors, while sRGB will crop more very saturated colors. In most cases, where most of the image is in mid-range colors, one will prefer sRGB. In very specific cases with many details to be rendered with colors in the borders of the color space (flowers ?) adobe RGB may do a greater job, provided that a suitable output device is used. 16 bit AND a wide color space may give you both precision and wide range, but again, the output device and media must be up to the task. Patrice -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
