So, I received mine today. I was hoping I wouldn't have to post on this thread, but looks like I am a victim of the yellow screen issue.
The question I have is, what is the best way to approach this? Will they simply ship me a same configuration if I take it to the Apple Store? Or will I have to make another order? Because I purchased this with their finance option (which gives me ten days to make the purchase), I won't be able to put another order. Or will the replace the screen?
Jin.
My bottom is a little warmer, but I can't see unless I really want to, and it is so difficult to notice that I forgot for weeks until I reach this thread. No image retention and zero backlight bleeding. I love my 27"iMac. Don't give up!
I ordered a 27 "iMac in December and I got a screen with a yellow tint, and I have seen immediately because I just next to a 27" late-2011.
A color temperature of 6500 K is standard for ordinary PC use and for the sRGB standard. Most LCD monitors offer a setting of 6500 K among their color temperature options. If a monitor offers an sRGB mode, setting it to this mode should present no problems. In most cases, even products whose color-temperature settings use terms like "blue" and "red" will be adjusted to close to 6500 K for standard mode, although accuracy may be lacking. The LCD monitors on some laptop PCs are set to higher color temperatures.
I sent it back and I got one that has exactly the same worries. So I corrected the problem with the calibration but I'm not happy: (
My iMac was assembled in Ireland.
After my 4 iMacs with yellow screens I gave up and have now got a 13" rMBP, surprisingly it has the same issue, so rather than return it I arranged a repair and lo-and-behold the replacement screen also has the issue. That's 6/6.
I can only conclude that the vast-majority of Apple's displays have the issue, and getting a screen with even colour distribution is lucky at best, impossible at worst.
Just popped by and I'm really surprised to find this thread still going!
After my 4 iMacs with yellow screens I gave up and have now got a 13" rMBP, surprisingly it has the same issue, so rather than return it I arranged a repair and lo-and-behold the replacement screen also has the issue. That's 6/6.
I'm able to tolerate it as I plug into an external monitor (not an Apple one, nor will it likely ever be now). I'm an OSX user so not buying Apple is never an option, but I've no idea what I'll do next time, maybe a Mac Mini?.
I can only conclude that the vast-majority of Apple's displays have the issue, and getting a screen with even colour distribution is lucky at best, impossible at worst.
In terms of being more or less yellow, is this against an older screen? I was looking for this link on display drift the other day. Basically a new display is never totally guaranteed to match an older display due to differences in age, and even post calibration differences in aging. Displays with hardware uniformity compensation and some kind of hardware and software that allows for them to be truly calibrated (as opposed to just re-profiled) cost more to build and don't represent the majority of them on the market. There are however far more of them today compared to a few years ago. I think part of the problem is just that these are unfortunately within specified tolerance levels. After two, I would buy something different.
That's more of a design limitation. They cannot afford to reject the majority of these panels, but it's an area where they should devote resources. Other brands have done the same thing.
In terms of being more or less yellow, is this against an older screen?
Saw this thread at work yesterday and was really worried about my imac which i got a couple weeks ago. Went home and looked really hard with my wife and don't think we noticed anything.
It's really difficult to tell because even tilting the screen slightly up/down will make the top or bottom brighter compared to the other side. Had to try to keep our eyes and screens as centered as possible. I think ours is ok.
Is the yellowing really easily noticeable or is there a better way to test? I'm still a bit worried.
Well, my advice would be that if you don't notice don't worry about it.
But... if you are interested... the current iMacs are a bit warmer in color temperature than previous generations so overall you may see a slightly yellow tinge. However, it is most noticeable on the bottom 1/3 of the screen on a white or gray background.
There are a number of ways to see it. But first your iMac needs to be vertical with you sitting directly in front of it. I notice that the yellowing on the bottom of the screen starts to go away if it's tilted back. This fact alone proves it's some angle of view problem.
Anyway, one method involves opening two identical Finder windows with one placed at the top of the screen and the other at the bottom. You will likely see a color difference in the background (in between the files if you are in icon mode) between the one at the top and the one at the bottom.
Another method is to go here and use 000 or CCC and look at your screen from top to bottom.
You can also use the Calibrate utility in OS X (in expert mode) to alter the White Point. The lower the temperature the more yellow the screen. The higher the temperature the more bluish it will be.
By the way, this isn't like "whoa... my screen is yellow!" it's more like "that's darker and yellower on the bottom.". It's sometimes described as a yellow tinge.
I notice that the yellowing on the bottom of the screen starts to go away if it's tilted back.
I think a real easy test is to open a finder window, then while setting your eyes on the gray part, drag it all the way to the top of the screen, then quickly down the bottom. If you have the yellow gradient issue, you'll immediately notice that the gray on the top is more natural in color and the gray at the bottom seems more yellowish (like a beige color).
For me, the effect is harder to see with an all white background. Anything gray makes it easier to notice.
I had a 2012 iMac before the 2013 one and I swear that one had no color uniformity issues and I completely knew about this issue back then too. The overall color temperature was very warm on it though, but colors were at least consistent throughout. When I got my 2013 iMac, I noticed the issue pretty much instantly. I kind of wished I kept that one now.![]()
I think mine has a very minor case of the yellow tint( when I say I think, I mean it could be my mind playing tricks on me since I am looking for it), but it is no where close to being as bad as people have been posting here. Due to it being very minor, I'm not going to play the replacement game since I can tolerate it and hardly ever notice it right now.