mantra Goldmember  1,617 posts Joined Nov 2006 Location: Italy, Rome More info | May 16, 2015 10:18 | #1 Hi canon 5d markII,24L & 24ts , 35L ,17-40L,24-70L,70-200 2.8ISL,50 1.4,85 1.4 , canon eos 3 ,eos 5 ,t90 , ae program and some very sweet fd lenses
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May 16, 2015 11:09 | #2 I have the i1Display 2 which is an earlier version which requires 2-video cards to work. Sony α7rIV, Sony α7rii, α6500, Metabones IV, Zeiss Batis 18mm f/2.8, FE 24-70mm f/2.8 GM, FE 50mm f/1.8, EF 70-200L II IS USM f2.8, EF 100mm 1:2.8L IS USM Macro
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May 16, 2015 11:21 | #3 rcarlton wrote in post #17558645  I have the i1Display 2 which is an earlier version which requires 2-video cards to work. Here is what X-rite said about dual monitors for my setup: "We would like you to keep in mind that the most ideal way to run a dual display setup from one operating system is to have the ICC profiles applied from 2 separate video cards. This truly is the best way to ensure that the profiles are both generated and being applied correctly as so many cards do not allow the option to utilize separate LUTs from one card." Looking at the ColorMunki specifications I found: "Dual display support requires either 2 video cards or a dual head video card that supports dual video LUTs being loaded." Looks like we need two video cards! 
canon 5d markII,24L & 24ts , 35L ,17-40L,24-70L,70-200 2.8ISL,50 1.4,85 1.4 , canon eos 3 ,eos 5 ,t90 , ae program and some very sweet fd lenses
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DGStinner Goldmember  More info | May 16, 2015 11:22 | #4 Do you mean two monitors attached to the same computer or two separate computers?
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Aswald Goldmember 1,162 posts Likes: 106 Joined Oct 2013 Location: London, Paris, NY More info | May 16, 2015 11:25 | #5 I think it largely depends on your graphic cards.
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rcarlton Senior Member  More info Post edited over 8 years ago by rcarlton. | May 16, 2015 11:56 | #6 Aswald wrote in post #17558666 I think it largely depends on your graphic cards. I use xrite i1Display Pro and calibrated my dual monitors separately with these video cards, NVidia Quadro FX1500, FX1800, FX3800, 4000, 6000, K600, K2000 and K4000 without issues. Color Munki should be the same. How do you do this? If I have two video cards the instructions suggest I need to disconnect my second monitor and calibrate the first monitor, reconnect second monitor, disconnect the first monitor, and calibrate the second monitor. Never could get it to work right. Do you have a better way? My computer has the Intel processor which can also be used as a graphics card which I could use for my second monitor. Sony α7rIV, Sony α7rii, α6500, Metabones IV, Zeiss Batis 18mm f/2.8, FE 24-70mm f/2.8 GM, FE 50mm f/1.8, EF 70-200L II IS USM f2.8, EF 100mm 1:2.8L IS USM Macro
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mantra THREAD STARTER Goldmember 1,617 posts Joined Nov 2006 Location: Italy, Rome More info Post edited over 8 years ago by mantra. (3 edits in all) | May 16, 2015 12:43 | #7 rcarlton wrote in post #17558704 How do you do this? From the instructions it sounds as if I need to disconnect my second monitor and calibrate the first monitor, reconnect second monitor, disconnect the first monitor, and calibrate the second monitor. Never could get it to work right. Do you have a better way? My computer has the Intel processor which can also be used as a graphics card which I could use for my second monitor. hi Datacolor info about video card LUT (look up table). """I assume you are on Windows, so please be aware of this Windows issue first: Here is some more information about using two seperate displays on one single video card on a Windows system: Each ICC profile has got two parts. One part will be used by the color management of Windows and it's applications, the other second part will be loaded into the Lookup-Table (LUT) of your video card. This is what the ColorVision-Start-Up (Spyder2) or SpyderUtility (Spyder3 and Spyder4) does on boot-time. See the LUT as a kind of translation table for creating the right colors. To calibrate and use two displays on one and the same Windows computer, you need a video card with two separate Lookup Tables (LUT). But this exists only on newer and high quality video cards or if you have two separate graphic adapters in your system. Several video cards offer two or more display connectors, but they only have one LUT. Therefore it's impossible to use two separate correction curves for these two connected screens. But you can still calibrate your main display and use the second one (uncalibrated) for tools and pallets. From the outside, you can't see if your video card has got one or two LUT. To be sure about this, please get in touch with the manufacturer directly. Most Windows laptops use standard video cards with one single LUT! As a first test if your graphic card can handle two LUTs: Please find attached a small test tool. Unzip and place on the first of your screens. Run the tool and press the button Magenta. Now this first screen should have a Magenta color cast only. If both/all screens show a Mangenta color cats this indicates that the graphic card has only one / not enough (on system w. 3 or more displays) LUTs. Click on Reset now. Move the tool on the second / next monitor and repeat the test. If at any time both / two or more monitors show the Magenta color cats at the same time this indicates that the graphic card has only one / not enough (on system w. 3 or more displays) LUTs. One more information: To identify your screens please go to the end of the calibration and go the the advanced analysis. You will find a button to identify the displays. If your graohic card can handle two LUTs please use the rename button from the drop down menu to rename the displays. If you want to delete the ICC profiles you have generated you will wind a ICC profiles Windows is using here: C:\Windows\System32\spool\drivers\color The file extension is *.icm and also can be *.icc """ My GTX 550 ti was capable of dual LUT and the two monitors look very well matched now. Datacolor answered my question within 24 hours, I am very pleased with their service and product. canon 5d markII,24L & 24ts , 35L ,17-40L,24-70L,70-200 2.8ISL,50 1.4,85 1.4 , canon eos 3 ,eos 5 ,t90 , ae program and some very sweet fd lenses
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Aswald wrote in post #17558666 I think it largely depends on your graphic cards. I use xrite i1Display Pro and calibrated my dual monitors separately with these video cards, NVidia Quadro FX1500, FX1800, FX3800, 4000, 6000, K600, K2000 and K4000 without issues. Color Munki should be the same. thanks DGStinner wrote in post #17558661 Do you mean two monitors attached to the same computer or two separate computers? I have the X-Rite i1Display Pro and have calibrated both my desktop monitor and my laptop screen. hi canon 5d markII,24L & 24ts , 35L ,17-40L,24-70L,70-200 2.8ISL,50 1.4,85 1.4 , canon eos 3 ,eos 5 ,t90 , ae program and some very sweet fd lenses
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tonylong ...winded  More info | May 16, 2015 18:19 | #9 I don't know about the ColorMunki but it was pretty simple with my old Spyder -- Tony
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Aswald Goldmember 1,162 posts Likes: 106 Joined Oct 2013 Location: London, Paris, NY More info | May 17, 2015 22:04 | #10 mantra wrote in post #17558763 thanks yes , may you tell how did you ? 1 )did you connect one monitor to the video card port 1 , calibrate and disconnected the monitor 2) connect the second monotir to the video card port 2 , calibrate and disconnect the monitr 3) connect the 2 monitors to the video cards and? I did no. 3. Main monitor to DP1 and Second Monitor to DP2.
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Aswald Goldmember 1,162 posts Likes: 106 Joined Oct 2013 Location: London, Paris, NY More info | May 17, 2015 22:08 | #11 tonylong wrote in post #17559108 Since I believe the OP asked about two separate computers (one belonging to a friend) then sure, just calibrate using a separate process (don' try to share the ICC profile, which is monitor-specific. Ok. This could be a possibility....will have to let OP clarify.
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May 17, 2015 23:12 | #12 |
Scooby_Doo Member 157 posts Likes: 14 Joined Nov 2010 Location: North Dakota More info | Check to see if Dispcalgui supports the munki. It should.
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May 18, 2015 11:51 | #14 Aswald wrote in post #17560620 I did no. 3. Main monitor to DP1 and Second Monitor to DP2. On the Calibration software, both monitor will show up as options. Just choose the monitor you want to calibrate. Calibration screen will open on the chosen monitor. Just place the colorimeter/spectrograph meter to the center of the designated area on that monitor. The calibrated profile will be automatically saved for that monitor alone. When you are done. Repeat calibration process for the other monitor. The only thing to remember is the ICC Profile version. The newest is ICC Profile version 4. It's still a bit flaky and may not work well with Windows 7. Save your ICC profile under the older version 2 instead. Windows recognizes this color version well. With Version 4 you may run into color management issues with Win 7. hi Scooby_Doo wrote in post #17560864 Check to see if Dispcalgui supports the munki. It should. yes , i could be a nice try , i read lots of goods about this open source canon 5d markII,24L & 24ts , 35L ,17-40L,24-70L,70-200 2.8ISL,50 1.4,85 1.4 , canon eos 3 ,eos 5 ,t90 , ae program and some very sweet fd lenses
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tonylong ...winded More info | May 18, 2015 16:13 | #15 Aswald wrote in post #17560626 Ok. This could be a possibility....will have to let OP clarify. Since ICC profiles are stored on the PC, you prob can't calibrate someone else's monitor for them.....unless calibration is done on their PC. Exactly. In fact with a PC with dual monitors you would want to calibrate the monitors separately and store the ICC profiles separately. If your graphics card has multiple LUC and Windows (and your processing software) is set to switch between the two monitors, then the ICC profiles can automatically switch since you are changing to a different LUC. On machines with only one LUC, both monitors use the same LUC, so you need to manually switch the ICC profile. I don't remember the specifics, you may in Window do this through the Desktop right-click tools. Tony
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