LG Electronics UHD 4K Monitor 27UN83A-W, 27 inch, 4k, 60Hz, 5ms, IPS Display, HDR 10, AMD FreeSync, Energy Saving, HDMI, DisplayPort, USB C, Anti Glare, Adjustable Stand

Product Information

For all my external storage, a TB 3 to TB 2 adapter solved the problem. But, not for my trusty Apple Cinema Display. While it still worked perfectly after all these many years, it did not work with my Thunderbolt 3 iMac. If I only used this monitor to view images, I’d probably run it at its full 4K resolution. But menus look too tiny and are very hard to read at that size. Scaling it somewhat smaller helps a lot. I like this monitor. I don’t play games, so the refresh rate is fine. The colors are lovely. The resolution is crisp and shows me I need to improve my ability to focus an image.

M1 Macbook Pro 4k Monitor suggestions? : r/macbookpro - Reddit

For most users, these ports should give them everything they need. We connected a MacMini using the USB-C port and a couple of game consoles via HDMI. And because the USB-C port carries power as well as video and audio, the monitor can be used to charge a MacBook (or other USB-C laptop) while also acting as an external screen. The only disadvantages to this monitor is that it connects via HDMI, which requires a converter cable for all iMacs, and all adjustments are made using a multi-purpose toggle switch at the bottom center of the bezel. For those who want to tweak this monitor beyond what its simple menu is capable of, LG includes the True Color Pro software. This can be used to optimise colour performance to make more use of the display panel’s wide colour spectrum. However, this software requires a physical calibrator and one isn’t included in the box so you’ll have to source that separately. If you mount the monitor vertically, say for display advertising, the image can be rotated using a software control. However, while the stand can be tilted vertically, it can’t be rotated

LG makes lovely display panels. Colors are clean, resolution is crisp, the image holds up extremely well, even when compared to the 27″ iMac it is sitting next to. In fact, I ran the Apple Display calibration software when I first connected the display. It was right on, no adjustments were needed. The total image area is 3840 x 2160 pixels, which equals a UHD display. However, it defaults to Retina Display behavior which means that it changes the screen resolution to 144 ppt, then pixel doubles a 1920 x 1080 image. This makes text much easier to read, without, as far as I can tell, damaging image quality.

LG 27UL850 vs LG 27UP850 - DisplayDB Compare LG 27UL850 vs LG 27UP850 - DisplayDB

While the monitor resolution is 4K, I get the best-looking images by scaling the resolution down slightly to 2560 x 1440. This also means that application menus are clear and easy to read. This monitor has a maximum resolution of 3840 x 2160, making it 4K. It also has a refresh rate of 60Hz via all of its inputs, offers HDR 10, and is compliant with the VESA DisplayHDR 400 standard. This isn’t the greatest version of HDR, and you can certainly find greater dynamic range and higher peak brightness on higher-priced monitors, but if this is a monitor used mostly for regular computer work you won’t be using HDR much anyway.

It was a sad parting. When I upgraded my computer from a 2013 iMac to a 2017 27″ iMac, I also made the change from Thunderbolt 2 to Thunderbolt 3. So, I needed to get a new monitor. After extensive online research it came down to the Apple / LG UltraFine 4K Display, sold by Apple, and the LG 27″ UHD 4K Display sold by a variety of outlets. In addition to changing settings using the on-screen monitor controls – which can’t be screen captured, or I would show them to you – you can also adjust and calibrate the monitor using System Preferences > Display > Color. It can also upscale regular SDR (standard dynamic range) content into HDR, using an algorithm to improve tone mapping and luminance. It’s not true HDR, but a nice feature to have nonetheless.