Mark Thomas wrote:
John McWilliams wrote:
Alfred Molon wrote:
Somewhere I read that for prints you use sRGB, because many printers
use sRGB. Then why do you need Adobe RGB, or are there printers which
use AdobeRGB ?

Yes, there are printers that have a wider gamut than sRGB, and some
monitors do as well. There's a wider, newer space called ProPhoto RGB,
as well. Printing at home with Photoshop managing the colors, you can
use whatever space the photo is in, and the conversion will be to the
specific printers drivers' capabilities.

You may have read the advice to use sRGB for prints sent to the
average service bureau, as that's what most expect, and lots don't
know what to do with a different color space.


It's worth re-iterating that use of a wider colour space is only useful
if your image has colours outside the 'less wide' spec and inside the
wider one...

And that no colour space has *more* colours - the colours are simply
'remapped' and spread out more so the steps between colours are greater.
So that means if you are manipulating 8-bit images, you may well be
adding new problems (eg posterisation) by using a wider space.

As they say, if you aren't willing to deal with all this, or you are not
quite sure about any aspects, just stay with sRGB.

Actually, Mark T, some printers do have more colors (and colours) than
others, if you say a wider gamut is "more color", which is not
unreasonable.

--
john mcwilliams