I do not want to deal with the big picture of the monitor. He has a good image and otherwise I'm really happy with the monitor around, but: I ordered my second GL2450HM Amazon. The first monitor I bought in May 2013. Once set up both Montiore I noticed the different picture that still remained different even after a reset of both monitors. Various cable combination (DVI / HDMI) have not changed anything. Schießlich I noticed that the menu is different for both monitors. The new monitor has a newer revision "00-007-AA", which brings a new feature called "Low Blue Light" with it. This change anscheind the blue color of images. Unfortunately, can not be set to 0% of this value to adjust the image to the older revision ("03-120-BA") of my old screen. I'm going to try firstonce about other settings to match the image and if that does not work I'll have to find another solution.
I think it is in principle a good thing that is improved over the years a screen, but not to make a new feature can be deactivated, was probably not the best solution here. Anyone who wants to expand his GL2450HM with the same screen, you should definitely pay attention to the previously Revison / add functionality. I packed these reviews two images showing the two different menus.