Markus,
I did compare your corrected IT8 in my Photoshop with my own IT8 slide
RAW scanned using Silverfast and profiled with Gretag ProfileMaker.
Assigned and converted to s-RGB as yours. Very similar. My darkend
goes much deeper with a lot more "punch". Patch 11 actually reads
sligthly lower than yours. Yours are sligtly lighter in other words.
But visually it's very close allover. Some of your red/"orange"
patches were oversaturated compared to mine. But that could be a
perceptual thing.
So, THAT IT8 you are showing us isn't to dark. You are probably using
a real high luminancevalue at that lighttable.....
To check a CALIBRATION vsv PROFILING go and download a gammatarget
for the value you've been calibrating your monitor to (2.2?) at the
link below. Drag it out on the desktop from the browser. Open in
Photoshop , use leave as is, no assigning. Then use the softproof :
View>proofsetup> MONITOR RGB.
Use Ctrl+ Y to activate/unactivate the proofview.
When MONITOR is activated as proof it will disconnect the
Monitorprofile from the Photoshop view. You're now looking at the
monitor CALIBRATION only as the RGB (workingspace set in Photoshop) is
sent directly to the monitor. Tha's when the file is untagged. When
assigning the scannerprofile it will use that as the RGB space sent to
the monitor. The normal conversion from Workingspace into the
monitorspace is taken out of the loop. It means that the ADJUSTMENT
the Adobe Gamma did to the monitors native behaviour is the only thing
you look at now– the adjusted view. Exacly like the non colormanaged
browser or another software in that field is using a
monitorCALIBRATION.
When UN-activating the proof and using Photoshop as normal without any
proofview, the conversion is going from the workingspace to what the
profile DESCRIBES. In otherwords the profiled monitor and the look of
it AFTER it was calibrated.
IF the look is darker of the gammatarget when the MONITOR RGB PROOF is
ACTIVATED – then the Adobe Gamma CALIBRATION hasn't taken it to 2.2.
BUT the profile is describing this and Photoshop knows how dark it is
and adjust the VIEW on the open file only (in Photoshop) for this. Old
Windows NT4 is braindead regarding CMS and and coulden't adjust the
screen (calibrate) but it was still possible to use it with Photoshop
thanks to the fact that the profile described it correctly in the
NATIVE state and compensated the view....it lightened up the open
image in Photoshop instead.
The Adobe Gamma is loading this CALIBRATION to the LUT using Adobe
gamma Loader in the startupfolder of a PC as you know. On the mac the
vcgt tag in the profile is loaded directly to the LUT
systemwise....switching a profile switch also the calibration.
If the loader doesn't work on the PC, that could be checked on a PC
[at least with w2k) by going to the monitorpanel. I'm not on a PC now
but if you push the advanced button or option something you'll get
into a tabbed dialog. When you tuch one of the tabs ( I don't remember
wich one) the lutload will realease and the calibration goes off. It's
now in it's native state. You can load it again by getting out of this
monitorpanel and then go to START button > Startupfolder or similar
and doubbleclick on the adobe gammaloader. That will load the
calibration again.
So,
using a gamma target you can check;
-Native value compared to calibrated.
-Calibrated with workingspace gamma 2.2 sent directly.
-The PROFILED view compared to the "sent directly view=calibration
only"
Bottomlines:
You will ALWAYS have a difference between NATIVE and THE OTHERS if
calibrating to 2.2.
You can live with a difference between CALIBRATED and PROFILED – as in
NT4 – while still having a correct view in Photoshop if the profiled
part of the profile describes it correctly.
Ideally the Calibrated and the Profiled will not show any diffrence
gammawise. Then the midtonelightness will be the same in
noncolormanaged and colormanaged aware applications. That's quite
nice.
If BOTH the calibrated AND the profiled is showing anything else than
the 2.2 when using the target – then that's where the problem is as
Wolf said, but if the profile DESCRIBES this non- lutloaded-view then
the view in Photoshop would be correct anyway and the
workingspace/documentspace will show it's gamma on the open picture.
Glad to see that you told Wolf that you did load the right
descriptiofile and it was nothing wrong with it
nikita
Scroll down to the "monitor tespatterns and grab one of them to load
in Photoshop and don't choke yourself with the rest of the stuff on
this page. Do the simple test first from my post:
http://www.normankoren.com/makingfineprints1A.html#gamadjust