[two-na]

Is there an important difference in painting with photoshop in 16bit cmyk as opposed to 8bit rgb? How is it important, or is it only important for the final product?
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[jfrancis]

If you make your artwork in rgb, you may be disappointed by the quality hit your colors can take in cmyk -- the color gamut is different in places from one to the other. Printing is generally done in some version of cmyk. If your work has to look its best in cmyk, you should prepare it there, or periodically look at it there throughout the creation process.

16-bits is better than 8 at representing photography -- especially in shadow areas. Not printed photography, but on digitally recorded film -- like in the transparencies that printers may use as source material for later printing -- or on film in the movie industry.

I haven't heard any discussions about a need for 16 bits for print itself.

[eyewoo]

[jfrancis]

And monitors can't represent 16 bit color

[B0b]

4 bit colour =16 colours
8 bit colour = 256 colours
16 bit colour = 32,786 colours
24 bit colour = 16.6 million colours
32 bit colour = 16.6 million colours + 256 Alpha shades

sure u don't mean 16bits? or 48 bit colour, where each channel gets 16bits

48bit is useful when editing Photos

[jfrancis]

8 bits or 16 bits -- the "per channel" is assumed.

Google the phrase 10 bit log -- you'll see tons of discussions about 8-bit linear space and 10-bit log space -- and in all of those dscussions, the "per channel" part is assumed