Hi Alan, thanks for the link. It's a great article. I ended up using i1d2+ccmx & calibrated my monitor at native WP, 100lux & 0.25 BP with ~670:1 contrast ratio. And I see every bit of the shadow details, including from 0 to 1 in RGB. With Colormunki I get pretty much identical visual result but when I ran calibrated reports, I constantly get about 100-120 less contrast ratio at ~560:1. X-rite OEM software gave OK result but with very limited features and less shadow details. So everything is working great so far. Thanks again Graeme for making such a useful tool available for so many devices/OS! and for free! On Sat, Sep 10, 2011 at 8:59 PM, Alan Goldhammer <agoldhammer@xxxxxxxxxxx>wrote: > I wouldn't worry about the reduced contrast ration if you are using your > monitor for photographic work since the contrast ratio of inkjet printers is > slightly lower than what you have. The key thing regarding calibration of > monitors is to insure you get a print that matches your monitor and > depending on the viewing conditions next to your monitor, a number of > different possible settings can provide a match. A useful essay on this is > at: > http://www.luminous-landscape.com/tutorials/why_are_my_prints_too_dark.shtml > Just FYI, I have a BP of 0.35, WP of 120 and Contrast Ratio of 380:1 and I > get a good match of prints to monitor when using a Solux light source > mounted next to the printer.**** > > ** ** > > *From:* argyllcms-bounce@xxxxxxxxxxxxx [mailto: > argyllcms-bounce@xxxxxxxxxxxxx] *On Behalf Of *xun wang > *Sent:* Saturday, September 10, 2011 1:40 PM > > *To:* argyllcms@xxxxxxxxxxxxx > *Subject:* [argyllcms] Re: Crushed shadow details**** > > ** ** > > I'm not sure if there is a default black point for argyllcms.**** > > The x-rite profile is quite decent actually as far as I can tell, it's just > not nearly as flexible. At 6500k(my lcd's native now is ~5k) 100cd/m2 white > point, I see black level at 2, have a contrast ratio of ~780:1. I'm not sure > what the BP is for x-rite because it doesn't say. Using ArgyllCMS and BP > adjusted to 0.3/cdm2, I see BL from 1, but with a reduced contrast ratio of > ~470:1.**** > > On a similar note, I was originally planning to calibrate my i1 display 2 > off the colormunki and use the i1d2 to get better shadow details because > everyone is saying that spectro doesn't perform as well as a colorimeter in > dark patches, I understand it's because of the increased noise. But so far > I'm not seeing any real world differences when I compared ColorMunki with > i1D2+CCMX in the shadow. I checked out the B&W gradient & examined the dark > patches in the shadow and didn't notice any conclusive differences between > the 2. What exactly should I be looking for? **** > > ** ** > > I did however see higher dE in RGB gray balance when I did cross profile > verification using both to measure against each other, not sure they mean > anything, but here you go.**** > > ** ** > > All settings used are the same & built using high quality setting, with > only difference in hardware. For CM I turned on Adaptive Hires & BP Drift > Compensation.**** > > Using ColorMunki for verification:**** > > 1) CM profile: http://tinyurl.com/4yqu4km**** > > 2) i1D2 profile: http://tinyurl.com/3kgq5od**** > > ** ** > > Using i1D2+CCMX for verification:**** > > 1) CM profile: http://tinyurl.com/3jncfnc**** > > 2) i1D2 profile: http://tinyurl.com/3fkhqz8**** > > ** ** > > On Sat, Sep 10, 2011 at 7:50 AM, tony22p <tony22p@xxxxxxxxxxx> wrote:**** > > But Xun, to me this raises a question. If you had to raise the black point > did you then wind up being slightly out of calibration? In other words, was > the black point setting originally where the calibration software said it > needed to be?**** > > **** > > *From:* argyllcms-bounce@xxxxxxxxxxxxx [mailto: > argyllcms-bounce@xxxxxxxxxxxxx] *On Behalf Of *xun wang > *Sent:* Saturday, September 10, 2011 12:40 AM > *To:* argyllcms@xxxxxxxxxxxxx > *Subject:* [argyllcms] Re: Crushed shadow details**** > > **** > > Never mind I see what I did wrong. All I had to do is to raise the black > point a bit to get all the shadow details.**** > > On Fri, Sep 9, 2011 at 10:22 PM, xun wang <xun911@xxxxxxxxx> wrote:**** > > Thanks that works!**** > > **** > > I did some some further testing and comparison, and noticed that with > ArgyllCMS I still get less shadow details than the profile created using > X-rite's OEM software(ICC v2). Using photoshop's curve tool, the > lowest discernible shadow details using x-rite profile is 2. With ArgyllCMS > profile it's 4. I don't see any noticeable color casts in the shadows by > either profile.**** > > I also get less gamut volume with the ArgyllCMS: 1,114,180 vs 1,087.920*** > * > > **** > > Below is the DispcalGUI screenshot for the settings I used, please let me > know if there're anything I haven't optimized. Because I would really love > to use ArgyllCMS for my main calibration tool for its powerful features and > flexibilty. But for now the x-rite OEM software seems to give superior > result yet taking a fraction of the time.**** > > **** > > DispcalGUI setting screen shot: http://tinyurl.com/3vw7o9y**** > > **** > > I also ran "Very Profile", I'm not entirely sure but it also seems to agree > that the x-rite profile is oeverall slightly more accurate?**** > > x-rite profile verification: http://tinyurl.com/44eptzd**** > > argyllcms profile verification: http://tinyurl.com/4yqu4km**** > > **** > > Any help and inputs are greatly appreciated!**** > > **** > > Xun**** > > **** > > On Fri, Sep 9, 2011 at 2:54 PM, Florian Höch <lists+argyllcms@xxxxxxxxx> > wrote:**** > > Am 09.09.2011 20:28, schrieb xun wang:**** > > **** > > Is there anyway I could create a "single gamma + matrix" file for > Colormunki using the existing saved calculation data without running > through the "Calibreate & profile" process again? it's painfully slow > when I use "adaptive hires" + Black Drift Compensation for the Colormunki. > **** > > **** > > Yes, you can use the existing ColorMunki data to create a new profile from > it. (using the commandline tools, give the existing .ti3 as last argument to > colprof. Or if you use dispcalGUI, set the desired profile type, then in the > "Options" menu -> "Create profile from measurement data...", then select the > .ti3 file) > > -- > Florian Höch**** > > **** > > **** > > ** ** >