sRGB vs. ECI-RGB

Hi Group,

we revise our prepress colormanagement settings and found some disputed
conclusions about that. One part will change the standard RGB Workspace
from ECI-RGB to sRGB because more than 90% of the RGB data come in sRGB and
also the major part of untagged RGB data are likely in sRGB.

We are generally agreed with this argument but than is the question, how we
should calibrate our image processing monitors? When we use the sRGB
parameters as the basic settings (6500K, Gamma 2,2) than we belive to run
into trouble, because this settings are far away from the CMYK colorspace.

The major advantage of ECI-RGB ist the bigger colorspace in the cyan area
but is this really an advantage, when 90% of the RGB data are processed in
sRGB? There is no 100% cyan and we cannot conjure up colors, which are not
present. But the parameters of ECI-RGB are adjusted to CMYK (5000K; Gamma
1,8)

When we using ECI-RGB as the default colorspace, the question how we should
calibrate our monitors is clear but now we have the problem with all this
untagged RGB data. Our last thought in this case is that we do not
synchronise our colormanagement settings over the bridge and leave the
default colorspace in photoshop in ECI-RGB and change the default
colorspace in Indesign or Illustrator to sRGB to avoid high saturated
pictures when we convert delivered data into CMYK (ISOcoatedV2) without a
visual check.

Another part of us means that we should tag every untagged RGB image with
sRGB and convert all RGB data into ECI-RGB.

Does anybody have best practice settings for the handling of RGB data in
prepress environments?

Thx in advance Tom
--
"Der Retter der Welt ist ein Pinguin und Linus Torvalds ist sein Prophet "