Just to clarify, that's all the same unit and same photo - just offset to compare sides and corners. Some people might be ok with it, but I'm not.
I would not be happy with it either. I hope you're able to get one you're happy with. Good luck.
Just to clarify, that's all the same unit and same photo - just offset to compare sides and corners. Some people might be ok with it, but I'm not.
I would not be happy with it either. I hope you're able to get one you're happy with. Good luck.
Beautiful, super bright, cool even screen.
Here are two ipad airs
The One on the left has good lighting but terrible yellow hue and uneven tone
The one on the right has a nice clear temperature but is dimmer on the one side.
Wanted to chime in here, as this thread got me extremely worried. I have 20/20 eyesight with perfect color vision so I was worried I'd notice all these faults once my Ipad came. Received my 32 gb Sprint Air today, week 50 DMPL and am absolutely relieved. Beautiful, super bright, cool even screen. Only the very faintest hint of blacklight bleed in one corner. Very very slight. If I try absolutely hard enough I can sometimes think I can imagine a very slight bookspine effect on the left edge, but I really think it's imaginary. No yellowing that I can see. Possibly the slightest slightest hue if I hold it a certain way, but again I really think it's imaginary. I *REALLY* tried hard to find faults (no idea why), but came away very happy. So relieved. Hope you all find units you are happy with!![]()
I liked it, but in the end if I could be happier with something else I make the move. Would I return 8? Nah. 2, tops, then it'd be on to something else.
It might not be OCD this time, but it's still silly to put yourself through that many returns if it bugs you that much.
Depending on what Santa does tomorrow, I might have enough money to get an iPad Air to use for school. I have never had an iPad. After reading about all the screen problems, I am concerned.
It seems in all likelihood you either won't even notice it or won't be bothered by it. Obviously, there are a lot of happy iPad Air owners out there. I'm just not one of them.
If the money is there, I will be heading to the Apple store Thursday morning. Hopefully, I will be happy with a purchase. I hope Santa can help this poor college student out.![]()
Brent you should send that data to apple....although knowing them, there will only be more silence.
I have read so much on this I don't know what to believe.
All the stuff about glue that hasn't cured...really?
If that's the case, it should be part of the official product notes:
"Your partially yellow screen is not a cause for concern. Please give it a few weeks and it will turn to crisp, evenly tinted white.In case this does not happen, your warranty will allow for a refund."
This is the kind of test I like.Also, as actual proof that there is a difference (whether everyone can actually discern it or not), I loaded up my earlier screenshots in Photoshop and used the eyedropper tool to compare the RGB values of different portions of the screen.
Set to a 50x50 average sample, here are some examples of the numerical data captured by the DSL sensor:
So, the data captured by the camera sensor confirms what my eyes are seeing. Numerically, the camera recorded ~5% shift of the color temperature from one side/corner to the other. Anyone with Photoshop or a similar program can duplicate this test with any photos uploaded by anyone.
- The center shows RGB 234/233/231.
- The upper right corner is 202/200/208 (bluish).
- The lower left corner is 213/213/209 (yellowish).
- An area on the left side is 211/215/213 (greenish)
So, unless someone is now going to claim that my Canon DSLR is just OCD, the shift is there.
Also, as actual proof that there is a difference (whether everyone can actually discern it or not), I loaded up my earlier screenshots in Photoshop and used the eyedropper tool to compare the RGB values of different portions of the screen.
Set to a 50x50 average sample, here are some examples of the numerical data captured by the DSL sensor:
So, the data captured by the camera sensor confirms what my eyes are seeing. Numerically, the camera recorded ~5% shift of the color temperature from one side/corner to the other. Anyone with Photoshop or a similar program can duplicate this test with any photos uploaded by anyone.
- The center shows RGB 234/233/231.
- The upper right corner is 202/200/208 (bluish).
- The lower left corner is 213/213/209 (yellowish).
- An area on the left side is 211/215/213 (greenish)
So, unless someone is now going to claim that my Canon DSLR is just OCD, the shift is there.
What was the distance between your iPad and camera?
And how do you set white balance on your camera?
This is the kind of test I like.
The question is: 5% is something to complain ?
It could be very interesting to check several displays from different manufacturers ...
I positioned the camera approximately five to six feet from the screen to try to minimize any impact of viewing angles.
Left white balance on auto since my goal wasn't to test the calibration of the screen - only to test tone variation from one side to the other.
Also just for info, I used my Datacolor Spyder with their calibration app, and the actual calibration (at the cente of the screen, at least) seemed very good.
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It's definitely enough for me to notice, but may be within their tolerances. I was mainly just wanting to see whether an objective, unbiased sensor would pick up the same thing or not.
What would be interesting would be to use custom, fixed white balance and take direct, isolated shots of individual portions of the screen and compare the color temperature.
Can you take a photo of both iPad and a white sheet of paper (or Kodak gray card) next to each other? It would be interesting to see RGB variations on both.
The question is: 5% is something to complain ?
brent1977 already answered that for you.
Alright. As I expected, photos of gray calibration card (in my case an 18%-gray mouse mat) next to the iPad screen didn't work since both white balance and exposure were too different (ambient light vs. LED backlights).
I was thinking later, though, that maybe what you were after was just to see how uniform a photograph of the gray card would be. So, attached is a crop of a portion of the gray mat. Keep in mind that this is a fabric surface so it's not completely clean. Still, there is very little variation in tone.
I then used the gray mat illuminated only by the iPad screen to set a custom, fixed white balance and took some more photos of the iPad screen - this time the Settings page because gray looks even worse than white. To further eliminate the possibility of viewing angle issues, I used the custom white balance to take photos framing just opposite corners rather than just cropping them from the larger one.
These photos capture the way the screen actually looks in-person very well.
brent1977 already answered that for you.
Again ... While I do appreciate the analytic approach of your previous post, looking at this pictures I can't see anything worthing a return in your unit.
There could be slightly variations in your display illumination, but judging from this photos I think it's a perfectly working unit (keep in mind that I'm speaking only with your photos in mind, since I didn't see your iPad ).
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