I notice the green tint more on my D4 than on my D800. Just out of curiosity I sent Nikon an E-mail about the issue and I found the response to be interesting. I definitely think that there is an issue with the LCD calibration but Nikon just won't publicly admit it. I personally think that their reply is a bunch of nonsense especially when I can shoot a picture of something and immediately hold the camera up and review the image and on the LCD it looks green compared to what I'm standing in front of. I find that the displays on my D3x and D3 are very accurate. I also own a 5D MKIII and it's display is dead on as well. After dancing around and giving a convoluted explanation for the green tint of the LCD Nikon Basically told me that for $30 they can recalibrate the output of my LCD on my D4 and or D800 id I wanted. I'll have to decide if I can live with it or of I will send it in.