..... The 4k doesn't seem to work to well with CNX, but I seldom use it. But when I need it, it would be nice if it was running smoothly. It also a decision between wide gamut or not. So far I have the impression that a wide gamut screen are helpful in professional work and when it comes to printing. However the problem arise when the full Adobe RGB are compressed into sRGB for web. One have to maintain two separate workflows or being able to preview the sRGB version. .....
NOTE: 4K screen and CaptureNX2 work fine .. perfectly!
CNX-D is the problem.
The font's don't scale well. On my 1080 screen, the fonts are about 12 pt in size, on the 4K screen, they scale down to 6pt or something. You can see them and differentiate each item, but it just doesn't look nice, other than all the items in the edit list are viewable on the screen at all times without the need to scroll.
CNX2 OTOH works perfectly. more room to see more items in lists and menus, but the font is also nicely scaled.
In normal viewing the difference between sRGB and aRGB is minute. Some colours render a little bit more saturated in aRGB mode.
I don't push process my files to really need an aRGB screen.
But the few times I've seen posterisation has always been in blues(eg. sky) when they have been captured very dark ie. with a polariser and say a grad filter or something like that combo, and trying to maintain a good overall exposure in the highlights.
Sometimes the blues come out extremely dark and my old screen would display some posterisation in the blue tones.
On a series of images once, it drove me mad trying to un-posterise them with various PP steps.
I think it was BR that made mention that maybe the posterisation wasn't in the actual image, but only on the screen .. so I printed a couple of sample images affected(on a crappy printer no less!) and sure enough print came out crappy, but no posterised effect in the blue sky.
So those particular images just didn't render well on that screen(which is my secondary now).
I go back to look at those images and now there is no posterisation at all, either on that same screen, nor on the Samsung in either sRGB or aRGB mode.
But back then when I did see the posterisation, I had a nVidia graphics card of some low-mid range(something like a GT400-ish type model .. can't really remember)
It could have been the card, or my calibration point back then.
The point here is that don't just rely on the screen, all the other hardware can make differences too.
The only problem to watch for with screens like that Eizo ev2736w model is the hardware specs. It' can only display sRGB colours(ie. 16million) .. and it doesn't specify with how much certainty(in percentage terms).
So if you want to set your software to view your images in aRGB, while the image may look differently rendered, it won't be an actual aRGB rendering(1 billion colours) .. the screen's hardware is the limiting factor.
My basic review now having a large 4K aRGB capable screen:
* aRGB capability - basically a must have
* 4K capability - awesome to have, not necessary but can help in PPing. I also do other stuff too(mapping/spreadsheets/etc) the 4K(with proper scaling ability from the software) is probably the most notable user experience on a daily basis. eg. web browsing is so much nicer.
But there is a downside too! all other devices now(especially compact mobile types) are a PITA to use by comparison
* 30"+ screen size! - great to have, 27" would be the absolute minimum at 4K I reckon.
* the Samsung's ability to split between aRGB and sRGB is nice to have .. just wish it wasn't a convoluted process to activate.
* watching HD movies is painful now! :p .. 1/4 the screen size and almost impossible to upscale nicely. (note this is my terrible attempt at sarcasm .. I don't watch movies on my PC .. that's the job of the TV!
)
ps. the other thing that I'e found works nicely is sending something from my 4K screen to my old HD screen. The scaling is automatic in nearly all instances. So if I send (say) CNX2 from the 4K to the HD screen(and back), it automagically re-sizes the software window to suit.
This is where you clearly see the advantage of 4K.