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- This topic has 6 replies, 3 voices, and was last updated 4 years, 11 months ago by Vincent.
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2019-04-29 at 3:07 #17095
Hi,
I run the calibration several times, gamma 2.2, in a new macbook pro retina screen. I am getting high numbers for blue in the RGB Gray Balance close to 0% and 5%.
Is it normal?
Thanks,
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You must be logged in to view attached files.2019-04-29 at 12:24 #17104Instead of checking RGB %, check actual color distance (a* b* axis or dE/dC). They seem to be reasonably good even verified againts a true neutral reference.
Near black phosphor LED displays tend to show a color close to active emitters (blue led for sRGB-like screens)… but “visual distance” may be small like in your situation.Contrast seems to be low but IDNK which panel uses your macbook.
Also you should use an spectral correction for your colorimeter: WLED for sRGB LED displays or CCFL for older (very old) CCFL laptops with sRGB-like screens.2019-05-01 at 16:34 #17125in a new macbook pro retina screen
This model (MacBookPro11,1) was released late 2013. It has an IPS panel with white LED backlight, so you can use the correction “Spectral: LCD White LED family (AC, LG, Samsung)”.
2019-05-03 at 3:26 #17213Thank you very much, guys. I just run another calibration with the correction as indicated. First time, it got weird results, sRGB around 60%. Second time, I deactivated “interactive display adjustment”. I got better results, but not sure if it was because of that. I am attaching the verifications in both cases if you want to take a look at it.
Two questions:
How do you know the contrast is low?
I will also calibrate an Apple Thunderbolt 2 Display 2011-2016 and an AH-IPS AOC i2269vw (https://kr.aoc.com/product_421_I2269VW_monitor_Korea.php). Should I use any correction with those?
Thanks
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You must be logged in to view attached files.2019-05-03 at 8:58 #17217How do you know the contrast is low?
It is written in your HTML report, for example (2nd):
Contrast: 317.6:1
I will also calibrate an Apple Thunderbolt 2 Display 2011-2016 and an AH-IPS AOC i2269vw (https://kr.aoc.com/product_421_I2269VW_monitor_Korea.php). Should I use any correction with those?
AOC looks like a normal IPS LED sRGB screen.
2019-05-08 at 3:49 #17290Thanks. Which correction should I use for an Apple 2011 Thunderbolt Display: https://en.m.wikipedia.org/wiki/Apple_Thunderbolt_Display
2019-05-08 at 9:47 #17293Thanks. Which correction should I use for an Apple 2011 Thunderbolt Display: https://en.m.wikipedia.org/wiki/Apple_Thunderbolt_Display
I’m not sure about that. I think that it is a common display: LED sRGB, so use WLEDFamily_07Feb11
If you want to use community samples instead of generic ones you have some to try here:
https://colorimetercorrections.displaycal.net/?get&type=ccss&manufacturer_id=APP&display=Color%20LCD&instrument=i1%20DisplayPro%2C%20ColorMunki%20Display%2C%20Spyder4&html=1
I would not try CCSS with “macbook” in name or “retina” and when plotted (DisplayCAL 3.8, button next to correction combo box), it should look like this (but in black background):Like this one:
This is a typical spectral power distribution of a “WLED sRGB” display: a emitting blue LED and “broad and not spiky” phosphors for red an green.
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