I've actually seen screenshots from ColorThink (a program that maps
colour spaces in 3-d) that demonstrate that some printers do have
gamuts that extend outside of sRGB, and even Adobe RGB in certain
parts of their gamut.
On Feb 20, 2009, at 11:35 AM, Chuck Norcutt wrote:
> The rationale for using Adobe RGB is as an editing space and not as an
> output space. That's what it was designed for. It's analagous to
> using
> 16 bits for editing but 8 bits for output. You use 16 bits during
> color/brightness editing to minimize round-off errors of integer
> division. While you're doing editing the colors can go out of
> gamut for
> sRGB but have a better chance of being preserved if using Adobe RGB.
> Some monitors may be able to display outside the sRGB space but I
> don't
> think any printing technology can display outside the sRGB space.
>
> In PhotoShop, if you shoot raw, you can choose to edit in any space
> including Adobe RGB or (probably better) ProPhoto RGB. ProPhoto
> RGB is
> also an editing space. But when it comes to final output I choose
> only
> sRGB. Most of my prints are done in a lab which (like most) only
> prints
> from sRGB. If you don't convert it yourself they'll do it for
> you. I'd
> like to see it in converted form before I send it.
--
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