Colors themselves are actually pretty good out of the box, more than anything adjusting the gamma will be all you really need to do. And then adjust your OSD RGB sliders for the monitor to look very good.
You can get the banding almost entirely gone and fix the gamma very well if you don't have a calibrator using Quick Gamma and using Lagom downloadable Test images WITHOUT an embedded sRGB profile. In other words NOT the images that are on the main pages. Do not use those as they will give you a false representation of what your system is actually outputting. They have included the Non embedded profiles for download. Download them and save them on your desktop. View them with a good image viewer, such as XnView.
The images should be centered on your screen. Eyes at basically mid screen or slightly lower. The thing to look for is is any banding in gradients. If you try to fiddle with the gamma of this monitor, or try to add digital vibrance you will start to see banding in all gradients. Most easily noticeable in black to green and black to white. I do not believe any calibrator can or will fix this completely on this monitor
. I believe the only way this can be truly remedied is through a firmware update, better firmware tuning, and better OSD settings. Calibrating may make some of your colors more "accurate", like from 3.0 to 1.0 deviation, ( mostly
unnoticeable to anyone but color professionals who stare at images for 12 hours a day or do prints ) but it will not and cannot fix the gamma perfectly without introducing banding or introducing color cast in gradients. Something most of you will see when trying to use other peoples color profiles. If you see that your banding problem has just gotten worse and will rear it's ugly head sooner or later in the right content.
The reason i say to use the NON sRGB embedded Lagom images http://www.lagom.nl/lcd-test/
( download at the bottom) is because the ones with embedded sRGB basically assume that web content, images ect have embedded sRBG profiles. Which is not always the case, and on those images you may see banding, where Srgb embedded images look fine, something like your homepage news feed images or similar might pop out to you immediately. If you adjust your image with the Non Srgb profile images to look good, the Srgb embedded images should still look good as they did before, but so will the non color profile embedded images as they are using your OS color settings.
So that's Web content., or any images on your PC like wallpapers ect without an embedded color profile, that aren't actually botched by the creator, like handmade backgrounds, not camera photos, that contain gradients. Camera photos along with jpeg compression will often have compression artifacts. Something you can not get rid of because it is in the source. You can only really mask it by crushing blacks or the lower end of your color spectrum.
Some of my own test images. Larger and easier to utilize on a 24" 1440p monitor.
2048x800 Black to White gradient - No embedded color profile. BMP files. No compression. ( A 256 pixel gradient would be ideal, but this enhances any banding/stepping that might be present, besides the fact that a 256 pixel wide image it too tiny on this monitor to be useful imo)
NewGradient.bmp 4800k .bmp file
2048x800 Black to Green
gradientGREEN-BLACK1.bmp 736k .bmp file
2048x800 Black to Red
gradientRED-BLACK1.bmp 736k .bmp file
2048x800 Black To Blue
gradientBLUE-BLACK1.bmp 736k .bmp file
Simple Red Green and Blue Blocks
RGB-1.bmp 736k .bmp file
Understand any single gradient issue like the green channel will effect a lot of things. Basically any gradient that has a hint of green in it, even if it's a "blue" gradient" that is not pure blue but has some green channel in it and the more it has the more it will be skewed by a bad green channel gradient and vice versa.
On my unit the green channel gradient is the first to go noticeably bad by any changes in contrast or gamma ect.Using someone else profile is like 90% futile.
For instance when i tried Adams profile from PCmonitors.info banding and color cast across gradients and the Lagom blocks was terrible. (Pcmonitors.info shout out as one of my favorite review reads for various reasons and keeps getting better, even though he lacks the high end equipment of Prad or TFT i appreciate his approach and videos a lot. But all of these sites i have been reading consistently since basically their inception on the web ) It's not generally recommended by anyone who knows what they are talking about ( Adam included) but only offered as a Hail Mary. If you are at wits end, sure try it, but don't be surprised if it makes everything worse. And by that i mean you tested all gradients and color cast ect and it did not make something totally out of whack while you think it fixed something else.
Your other option on this monitor is to use NVCP and crush your blacks/lower end. It gives a more contrasty look and may mask "some" banding or jpeg artifact ect, but will introduce more problems in other areas.Edited by KGPrime - 10/2/17 at 7:03pm