Re: PS CMYK Conversions
Re: PS CMYK Conversions
- Subject: Re: PS CMYK Conversions
- From: Roger Breton <email@hidden>
- Date: Fri, 15 Aug 2008 09:42:44 -0400
Most printers I know will set their RIP to ignore embedded profiles of any
kind. In commercial and publications printing, unless a client specifically
requests some sort of press-independent workflow, no one will touch the CMYK
values that come in the door -- no one, it is just too risky.
As far as sacrificing RGB color gamut to a so-called "small" press gamut, I
would submit that only in extreme circumstances, as in very, very saturated
colors, source RGB colors get clobbered in the conversion to the "smaller"
press color space. Most images featuring human and natural colors fit well
within the gamut of a GRACoL2006_C1 or ISO_12647-2:2005 calibrated press.
Most images. So, passing images around encoded in those color spaces does
not mean that all the precious original RGB colors have been irrevocably
lost.
There are pros and cons.
Not everyone, for instance, is ready to embrace the idea of device
independence when it comes to CMYK printing. What about images separated
with GCR techniques? Those just can't be repurposed on the fly without
incurring some loss in the original intent of the separation.
Bottom line, this whole thread was started because someone questioned the
validity of converting images between RGB and CMYK in Photoshop. It's
interesting how it turned into image portability issues and press gamut
bashing. People, there is no such thing as one universal solution or
workflow for color. There are just a myriads of well-justified color needs!
It takes good judgement to decide on a given policy in each case and we
should not succumb to ideals of universalism and absolutism.
> And then we want to just
> settle for a generic, usually smaller, color space? Seems counter intuitive
> to me. Safer, yes. But for the geek in all of us that likes to push to the
> limits, it's just not exciting.
>
> Bob
Roger Breton
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