Not sure what you will get out of this as there seem to be conflicting opinions as to what is happening in Windows with 10 bit display and Adobe products. I am not sure what to make of any claims due to not being in a position to test first hand but pass this on hoping you may find the answers and share with others
I'll give it a go. The reason (and probably not a good one) is that when I first set up the Eizo, I used their black and white chart. The one where you match up the square that looks solid grey compared to the others. The one at 2.1 seemed like the closest match. ... I will try 2.2 and then 2.4 for the sake of comparison. The nice thing about the monitor is that it is easy to call up different profiles. Thanks for the tip...
It may be an obvious question (sorry!) but have you actually calibrated and profiled the monitor using your calibrator or have you made visual choices based on eye balling charts and select some preset?
The 10-bit ramp looks great--smooth as silk so long as I view the file at 66.7%. For some reason, and it is well-documented, the display reverts to 8-bit when viewed at less than 66.7%.
I have heard of the issues of less than accurate display at other than 100% but did not imagine that this would impact bit depth
What I find frustrating is that sometimes the soft proof matches the printer's output while other times it doesn't. Files with lots of values at or less than 100,100,100 look fine in the soft proof, but come out dark on the print. I've set the monitor to 70 CDM, 5000K, and 2.1 gamma. I edit the file in aRGB and then soft proof using the paper ICC profile. I feel like I'm going around in circles without arriving at a solution.
How do things look (in print) when you calibrate to D65 and 2.2 gamma i.e. closer to native?
My paper profiles are very good to excellent.
How can you know this when printer output is 'iffy' (sometimes matching sometimes not soft proof) also how good can you say your monitor profile is? Just playing Devils Advocate here but...
FWIW came across a post some time ago discussing related issues mainly concerned about CC but CS6 also mentioned - worth reading to see if you can make any sense and reach a conclusion?
This Thread started 2013 ending 2015
https://forums.adobe.com/message/5910632It seems that some are having problems with PS CC 2014 and not with CS6
"
In PS CS6 the ramp is smooth. In PS CC the steps can be seen in the ramp"
Chris Cox reply
Adobe has enabled 30 bit processing - that hasn't changed since CS6.
There is nothing else to enable - it's already there, and working.
You may have older drivers or some other problem on your system preventing it from working correctly.
But Photoshop already does what you're asking.Post #17
Suggests as you have found that at 100% view ok but at 50% banding appears.
It also suggests that with the PS selection tool the same thing happens - this I can understand as selections are always 8 bit
Next posts contradicts this saying
CS6 fine at any zoom ratio.
I think posts #22 #23 closer to reaching a conclusion the panels (may be?) 8 bit + FRC so the 10 bit is creating the illusion of 10 bit data using dithering. So how the monitor implements this plus how sensitive you are to seeing the dithering must go a long way to how you/we perceive the image
One poster suggests that
the outcome seem due to OpenGL incompatibility with Photoshop's Zoom scaling routine and goes on to say that with another 10 bit application no banding seen at any zoom ratio.
If this is true then as CS6 is no longer a current product I cannot see that Adobe will offer a fix anytime never mind anytime soon
Post #49 mentions the use of
Soft proofing with a printer profile 'solving' the banding issue similar to Yahor's experience
Another posts suggests:
There is no OpenGL path to 30 bits on windows 8 or 8.1 or 10. And currently PS uses OpenGL on both windows, and mac.
No back up to any documentation